1. Using environmentally friendly materials, long life, non-rot, non-toxic and odorless, safe, environmentally friendly and healthy. 2. Can be pasted repeatedly to remove no residual glue. 3. The surface hardness is as high as 4H. 4. Waterproof, dustproof and stain resistant. 5. Product material: PET.

http://olla.gr/tablet-pc-shell-protective-back-film-sticker-for-microsoft-surface-pro-4-5-6-grey/