1. Flexographic printing industry, used by artist engravers for many years, can be used to make personal seals. 2. Photopolymer plates, or solar plates as they are also known, are used in the flexographic printing industry. They have also been used by artists and printmakers for many years, and can be used to make personal stamps easily. 3. Making the plates is easy and can be done at home; no harmful or dangerous chemicals are needed, and the equipment used is easily and affordably obtained. 4. Printing durability, efficient self-adhesive printing, fast plate-making speed, low plate-making cost. 5. After-sales Service: If you have any problem, please immediately, we will help you solve it as soon as possible. Specification: Material: Resin Color: Light green Length: 30 cm / 11.8 inches Width: 20 cm / 7.9 inches Thickness: 1.6mm Photopolymer thickness: 1mm Include: 1 x Photopolymer Plate