Description This is an underground-style house designed with the burrowing habits of hamsters in mind. It allows them to burrow and hide in a natural environment, which helps to relieve their stress. The design features an openable ceiling, so owners can easily check on their hamster. It is a flat-pack design, so it can be folded and stored when not in use. Please refer to the link in the profile for a video on how to assemble it. About This Series This is a product series of "HAMSTER BOX," a small animal house jointly developed by Japanese craftsmen and a popular small animal Instagrammer. While many small animal goods are imported, this product is made with consideration for Japanese needs and the circumstances of small animals. The main feature of this series is that it has the warm texture of wood but is also washable. By using PVC material, we have achieved both the warmth of wood and water resistance. This is the perfect product for those who "want to use a wooden house but are worried about stains soaking into the wood." Details ・Product Name: Underground House (#18) ・Size M (approx.): 19cm × 18.2cm × 11cm (l × w × h) Entrance (approx.): 6.5cm × 5.2cm (w × h) ・Material: PVC ・Washable <<Notes>> * Please read the profile briefly before purchasing! (Information on shipping days during holidays such as the New Year's holidays is included). * Assembly products are not generally designed to be assembled with tools. If assembly is difficult, please be sure to refer to the assembly video in the profile. * Due to being a handmade product, there may be slight differences in the details depending on the item, and there may be parts that are not up to the standard of commercially available products. Please refrain from purchasing if you are concerned. * Due to the nature of the product, white powder may be attached to the surface, but please rest assured that it is not harmful to pets. * Due to the lighting, the actual product may differ slightly in color from the images. * The materials used in the background of the photos (fences, plants, etc.) are not included in the product. Thank you for your understanding and we look forward to your purchase.