This product is made of Kraft paper with PE bubble linings . The Kraft surface is very easy for writing . The inner PE bubbles have good cushioning effect to prevent damage of the loaded article 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 available . 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 . Suggested application: Gifts Books Frames Jewelry Watches Novelties Audio Cds Spare parts Electric parts Circuit boards Vido cassettes Drugs and vitamins Customized printing and color are availabie Customized sizes are available