: the use of acrylic materials, the board on both sides is a layer of protective film, after tearing off is a acrylic board, the is smooth and non-burr, and harmless, and beautiful, strong and not easy to deform. Accessibility: and clear colors and rounded corners help you cut leather easily and precisely. tools to help you make more refined finished products. Tips: When using, you need to use an or pen to draw rounded corners against , and then use a leather or to cut the rounded corners. Easy to use: The size refers to the diameter of where the shallow is located, and this fit size is very suitable for rounded corner size, which is very practical. of application: suitable for quilting or making handmade leather long wallets, wallets, handbags or other leather .