NBX Professional Compass with Mechanical Pencil Math Geometry Drawing Tools with 0.7mm Leads & 6 Erasers and Ruler Stationery Supplies for Students Teachers Designers Workers Features: Multi-functional Pencil + Compass Tool: A professional compass equipped with an automatic pencil for mathematics, geometry, art, drafting, and drawing extension beams.  Accessories List: Comes with a box of 0.7mm leads(12pcs), six erasers, and a ruler.  High-quality Material: Made of ABS and zinc alloy materials for steady strokes and durability.  Wide Application: An excellent tool for creating contours and circles (diameter: 4-10mm), it can also be used for edge marking. The ruler has 2 different edges - straight lines and wavy lines.  Best Gift Choice: Suitable for students, teachers, engineers, designers, artists, etc. Specification: Color: White, Pink, Blue (Optional) Pencil Size: 15x1.2cm Package Size: 170x47x22mm/6.6x1.8x0.8in Package Weight: 48g/1.6oz Packing List: 1 x Compasses 1 x Ruler 6 x Eraser 1 x Box of Pencil Refill