With Lock: Eliminate the trouble of losing image due to accidental Press. to lock contour gauge teeth and keep its shape. 2 PCS in Pack: You will receive one 5inch & 10inch contour gauge in one package.(No pencils and ruler) Perfect Width Core: 2 inch width body core. To the precision and stability of the teeth of the contour gauge, and effectively increase the measurement depth. ABS Plastic: Widen contour gauge made of high quality ABS plastic. It is durable, smooth to push and more accurate. Simply push the contour gauge against the object to match the contour and then lock the shape. Easily duplicate and transfer the shape accurately to anywhere. size:25cm Material:plastic colour:cyan Package Contents: 1 x 5inch Contour Gauge 1 x 10inch Contour Gauge Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.