Butterfly Rubber Film IV is sheets of durable plastic, non-sticky film that help protect the table tennis rubber surface from dirt and grime. It also improves the longevity of the rubber surface. Simply cut the film to fit your racket and this non-sticky film lays on top of the rubber. Rubber Film IV by Butterfly can be used for tacky rubbers too (Dignics 09C, Aibiss). The package includes two sheets for the front and back of the racket. Made in Japan.