This product is made of craft paper with EPE sponge linings . The craft surface is very easy for writing . The inner EPE foam has good cushioning effect to prevent damage of the loaded articles due to pressure , collision or falling . It is the first choice for personal post and corporate sample post . l Superior cushioning . l Many colors and designs availlabie. l Self-adhesive tape available . l Clean , easy and safe to use . l Light weight and small volume for postage savings . l Multi-functions for mailing and package . l Can be reused and 100 % recycled , accord with the request of environmentalism .