Please click on "Order free-of-charge sample", should you require one or multiple film samples of different IFOHA sun protection. films or blinds. We'll gladly submit these film samples free of charge. The samples will be send immediately after the receipt of your e-mail. Try and test the sample(s) on a glass surface. Mix a little water with diswashing detergent until its "soapy", use a small ruler or window wiper with a rubber slice to attach/press the film on the surface.