{"product_id":"plastic-drawing-compass-lock-scale-replacement-leads-students","title":"Plastic Drawing Compass with Lock, Scale \u0026 Lead Refills","description":"\n\u003ch2\u003ePrecision Circle Drawing Made Easy \u0026amp; Safe for Students\u003c\/h2\u003e\n\u003cp\u003eMeet the ultimate geometry compass designed with students in mind. Built entirely from durable plastic with \u003cstrong\u003ezero metal parts\u003c\/strong\u003e, this exam-approved drawing compass is safe to bring into examination rooms and classrooms alike. Whether you're tackling geometry homework or technical drawing projects, this compass delivers accurate, consistent circles every time — no extra ruler needed.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZero-Metal Safe Design:\u003c\/strong\u003e Constructed from all-plastic materials with no sharp metal components, fully compliant with exam regulations and safe for primary and middle school students.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Millimeter Scale:\u003c\/strong\u003e An integrated scale with a red indicator lets you read the radius at a glance — draw circles with confidence and accuracy without reaching for a separate ruler.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRotary Lock Mechanism:\u003c\/strong\u003e The adjustable locking knob secures the span firmly in place, keeping your chosen radius stable throughout the entire drawing process to prevent slipping or size deviation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Drawing Range:\u003c\/strong\u003e Supports a maximum drawing diameter of up to 300 mm (11.81 in), making it suitable for both small standard circles and large-scale geometry diagrams.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplaceable Bullet-Style Leads:\u003c\/strong\u003e Comes complete with \u003cstrong\u003e6 spare lead refills\u003c\/strong\u003e — thick, dark marks for clear visibility. Easy back-insert replacement means no sharpening is ever required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Ergonomic:\u003c\/strong\u003e At just 68 g and 15 cm (5.91 in) in length, this compact compass features a comfortable ergonomic handle for smooth, fatigue-free drawing sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e68 g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 cm (5.91 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRed, Blue, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Drawing Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm (11.81 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.2 × 11 × 2.7 cm (6.77 × 4.33 × 1.06 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePrimary \u0026amp; Middle School Students\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Drawing Compass\u003c\/li\u003e\n  \u003cli\u003e6 × Lead Refills\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eColors may vary slightly due to monitor settings and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow minor size tolerances due to manual measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou Might Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/picnic-box-metal-cutting-dies-stencils-diy-scrapbooking-cards\"\u003ePicnic Box Metal Cutting Dies Stencils for DIY Scrapbooking\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/leather-hole-punch-tool-diy-stitching-punch-4-5-6mm\"\u003eLeather Hole Punch Tool | DIY Stitching Punch 4\/5\/6mm\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/airtight-transparent-pet-storage-bottle-craft-beads-home-organization\"\u003eAirtight Transparent PET Storage Bottle | Beads \u0026amp; Crafts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this drawing compass allowed in official exams and examination rooms?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This compass is made entirely of plastic with no metal parts, making it fully exam-approved and compliant with standard examination room rules. It's safe for primary and middle school students to use during tests and exams.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I replace the lead refills in this compass?\u003c\/h4\u003e\n\u003cp\u003eA: The compass features a convenient bullet-style back-insert lead system. Simply slide the old lead out from the back and insert one of the included spare leads. No sharpening is required — the leads are ready to use right out of the package.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the maximum circle size this compass can draw?\u003c\/h4\u003e\n\u003cp\u003eA: This drawing compass supports a maximum drawing diameter of 300 mm (11.81 in), making it versatile enough for both small standard geometry circles and large-format diagrams.\u003c\/p\u003e\n\u003ch4\u003eQ: How does the built-in scale work?\u003c\/h4\u003e\n\u003cp\u003eA: The compass has an integrated millimeter scale along the arm, paired with a red indicator. As you adjust the span, the indicator points to the current radius measurement — allowing you to set precise circle sizes without needing a separate ruler.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this drawing compass allowed in official exams and examination rooms?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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