Kawaguchigiken Prosuberi (without backing paper) 21mm x 20m roll Hi-type Shikii Suberi (Sliding Door Track Glide) Brand: Kawaguchigiken Color: Brown Material: Polyethylene Number of Items: 2 Size: 21mm x 20m roll Purchased to improve the sliding of sliding doors. Selling two rolls that I didn't use. I think they were about 1500 yen each. It's a set of 2. I think it's a great deal for those who need it, thank you.