1. Made of polypropylene and metal, easy to measure. Each square ruler and mathematical protractor with clear scaling. There is a storage box for protecting and storing geometry tools in backpacks, school bags, book bags. 2. Package includes: 1 piece metal geometry tool, 1 piece 30°/60° set square, 1 piece 45° set square, 1 piece straight ruler, 1 piece 180 degree math protractor, 1 box of 0.7 mm pencil leads, 1 piece eraser, 1 piece storage case. 3. Ideal for math, geometry, art, drawing, woodworking, and drafting. Easy to take to math lessons and store in the classroom. 4. The metal geometry drawing tool can draw up to 23 cm in diameter. The geometry tool with sharp parts should be used carefully and kept away from children. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store