1.The inside of the sisal column is made of thick and strong paper tube, which has strong pressure resistance; the outside is made of sisal, the weaving method is firm and . 2.Use wood material from top to bottom, thick and stable; wall-mounted, reliable wall with nails; 3.The size can be up to 40cm, even if a big cat, it can be perfectly applied, can not put it down; 4. a toy that grinds teeth, games and shapes. Specifications: base diameter 13cm height 40cm sisal column diameter 7cm Type: Cat toy: cat scratcher Cat scratcher tree: cat scratcher shelf Feature 1: cat scratchers Feature 2: cat tree Feature 3: cat furniture for scratching posts Color: as shown Material: wooden sisal Package Contents: 2 x Cat Scratch Board Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.