Joint Support Design: To reduce the burden on the legs and hips of small dogs, elderly dogs, and pets with limited mobility, we use 30D high-density rebound sponge, which absorbs the impact of jumping with a soft yet firm elasticity. This reduces the burden on the legs and hips, supporting joint protection. The 3-step type, measuring 60cm wide x 40cm deep x 45cm high, is easy to use for higher beds and sofas. Easy-to-Fit Size: This dog stair/sofa/bed type is designed to be easy to use in Japanese homes. It naturally matches the height of furniture, allowing pets to safely go up and down on their own. This size is chosen by many households as an indoor dog stair for small dogs. Non-Slip for Enhanced Stability: The bottom is made of non-slip fabric, making it difficult to slip on flooring or tatami mats. It is designed so that pets can go up and down with peace of mind, and can be used stably as an indoor dog step/dog stairs. Lightweight & Easy to Carry: The lightweight sponge material makes it easy to move. It can be easily placed in various locations such as the living room, bedroom, or in front of the sofa. As an indoor dog stair for small dogs, it is also suitable for multi-pet households and households with elderly pets. Washable Cover for Cleanliness: The soft suede-like cover has a zipper and is removable. It can be machine washed, making it easy to clean even if it gets hair or dirt on it. It's a dog stair/indoor dog step that can always be kept clean.