The rotating self-healing cutting mat has a locking mechanism. Once you have reached the desired angle of rotation, simply engage the lock to secure the position of the mat. This prevents accidental movement or rotation while working, ensuring that you maintain the exact alignment of your cuts. Our rotating cutting mat is stable thanks to its non-slip rotating base that is lightly sucked onto a flat table surface. The scalloped edge design of the rug allows for effortless fingertip rotation by notches for added comfort and precision. This cutting mat also features 30°, 45°, and 60° marking angles for accurate corner cuts. The carpet's graduations are in cm. Each tile is 1 cm x 1 cm. Diameter: 35 cm. Color: turquoise carpet, black graduations. Top quality