Teaching Instrument Yellow Wooden Drafting Circle Drawing Compasses 42cm Product Name : Drawing Compasses ;Main Color : Yellow Material : Wooden;Maximum Circle Radius : 70cm/ 27.6" Compasses Size(Unfolded) : 79 x 2.8 x 3.4m/ 31.1" x 1.1" x 1.3" (L*W*T);Copasses Size(Folded) : 42 x 2.8 x 2cm / 16.5" x 1.1&ldquo; x 0.8"(L*W*H) Fit Chalk Dia : 0.9cm / 0.35";Weight : 136g Package Content : Compasses