MATH GEOMETRY KIT 5 PIECES. 12" (30 cm) ruler + 5.25" (13.3 cm) 30 /60 degree Triangle ruler + 4.25" (10.8 cm) 45 /90 degree Triangle ruler + 4" 180 Protractor + Center wheel Compass

STURDY & ACCURACY. Measures 0 to 180 degrees left to right and right to left. Protractors and rulers with inch and centimeter marks make measuring easy to read.

PERFECT ANGLES. Adjustment wheel with automatic locking mechanism. Perfect for precise drawings. Trace and draw the perfect angle, circle, circumferences, graphing, and interior design.

IDEAL DRAFTING. Durable, lightweight plastic material. Bright clear color makes you measure easier, and you can see the numbers and letters on-page through the protractor

Comes in 6 different color sets. Green, Purple, Yellow, Blue, Orange, and Pink. We cannot guarantee your color choice at time of order, and will substitute for another available color of our choosing