Polycarbonate Ace Transparent, approximately 2mm thick. A4 size, approximately 297 x 210 mm, 5 sheets. The cross-section is planed, the four corners are 1R processed, and there is no chamfering. This polycarbonate is weather-resistant on both sides, so it can be used outdoors and is also strong against cracking. It can be used for DIY projects, as well as for protective plates and security plates. However, please understand that it is not a product that can absolutely protect your life. We do not issue receipts. Returns are not accepted. Please refrain from purchasing if you are overly concerned about details. Please purchase after confirming the above information.