Thank you for viewing! Size: M ① Convenient Top-Open Design: The top-open design prevents hamsters from carrying sand out after a sand bath, effectively preventing scattering. It makes it easy to replace sand and water, and to clean, making maintenance very easy. ② Easy to Observe with Transparent Acrylic Material: Made of transparent acrylic material, allowing you to clearly observe your hamster's condition. You can check their sand bathing and toilet habits, which is helpful for health management and behavior checks. ③ Easy-to-Clean Separable Design: The main body and sand bath parts can be separated. You can easily remove and wash them when cleaning, keeping them clean at all times. ④ Space-Saving Triangular Design: The triangular, space-saving design allows it to fit perfectly in the corner of the cage. Compared to traditional square toilets, it effectively utilizes the space inside the cage. ⑤ Durable Acrylic Material: Made of high-quality acrylic, it maintains transparency and can be used for a long time. It can be used repeatedly as a hamster toilet/sand bath house, and is durable and safe.