Compass Maths ROATEE Visible Radius Geometry Tool Drawing Tool, Compatible with 0.5mm Lead for School Student Classroom Math Drafting Use Compas

Visible Radius, Instant Adjustment: Adjust and read measurements in real time, no ruler needed. This Compass features clear built-in markings for easy radius reading at a glance. The setting stays steady during drawing Anti-Slip Grip, Easy Operation: Ergonomic non-slip texture provides a secure hold for steadier control. Sized to fit comfortably in smaller hands, it allows for simple adjustments and cleaner circle drawing Retractable Needle, Safe Storage: Press to extend or retract the needle tip. When stored in a backpack or pencil case, this design helps prevent accidental pokes or injuries Universal Lead, Secure Hold: Compatible with standard 0.5mm lead refills, with an adjustable radius from 0.5 to 9.5 cm. The lead is held firmly in place to reduce slipping or retracting during use Durable Construction, Long-Lasting Use: Made from quality ABS material, this Compas resists bending and breaking, making it suitable for long-term everyday use