Recommended for pets that are. - formed pot /litière formed.This cottage is very sturdy - same thick and sturdy as cat towers/condos it can be considered a piece of furniture being added to your home. Material: thick particle plank construction, sofa fabric lining on interior and exterior walls, faux fur outlines on doors and windows, and inner carpet base. (The base of the carpet is not removable, we recommend covering it with a waterproof blanket or pad if you want a protective layer to prevent accidental peeing from seeping through the carpet base of this cottage). Color options: pink, blue or yellow. Size: about 24\" length x 14.5\" width x 15.5 height. The door openings are about 9.5 height x 8.5 wide. Comes assembled as it is. The high-end waterproof pads deed to fit the cottage perfectly can be purchased via this link (we collaborated with another etsy shop). The carpet base of the tokihut cottage is not removable (same concept as cat towers/condos). If you want a protective layer, it is highly recommended to cover the base of the carpet with a waterproof blanket or carpet. One suggestion is this perfect fitting protective pad made exclusively by the well-kept rabbit shop. This waterproof 6-layer tampon is double-sided, machine washable and super comfortable for all pets it will prevent any peeing accident from going through the carpet base of the tokihut house. The inner layer of the pad is made with zorb with silvadur that offers unparalleled and intelligent freshness - effectively controlling bacteria that can cause unpleasant odors, decomposition and discoloration.