I ordered this film, because I have two boxes appointed at Tchibo with just a sheet and was thrilled. Since I have several cardboard boxes for my wool and still never know in which box I have something, I ordered a role. The film is super processed, they could be very good and free of bubbles stick. Also writing with chalk is working fine. I find this film just great; highly recommended. Now I finally have the total Durchblick :-))