I just let my cat sniff it and stick its head in, but it wouldn't go in at all. I only placed it after opening, so there's no sign of use. It's a smooth, silky material. Body: Height: Approximately 43cm Width/Depth: Approximately 38cm Entrance: Height: Approximately 21cm Width: Approximately 16.5cm Please check the images and understand that this item has been stored at home before purchasing. I will pack it within the specified size. [Please understand and purchase.] * The color may appear different from the actual product due to lighting during photography, the monitor you are viewing, and your PC environment. * It will be shipped in simple packaging. Recycled packing materials will be used. * It is also listed on other sites, and may be canceled or the transaction may be stopped depending on the timing.