Please read to the end. Wall-mountable wooden cat shelf, curved design Wood used: Pine laminated wood Backboard (circle diameter): 22cm Depth: 27cm Rope: Paracord Spacing between boards: 7.5cm Total length: 1m28 This product is the type that is securely fixed to the studs behind the wall with screws. For safer use, we recommend using a stud finder (costs a few hundred to a thousand yen) sold at home improvement stores. The screws used were 5cm long, but they are not included. Purchased 3 years ago. A 5kg house cat was able to use it without issue, so please be careful if your cat weighs more than 5kg. There are scratches on all the boards.