Thank you for viewing! This is a wooden step for rabbits. - You can open and close the cage door while the step is attached to the front. - Size: 30cm (height) x 20cm (width) x 7.5cm (top) - Material: Natural wood I tried it with my rabbit, but they didn't use it to get in and out, so I'm selling it. Please understand that this item has been stored at home. I look forward to your purchase.