Acrylic and wood construction, with a wire mesh ceiling that allows for the attachment of heaters like a "Dantotsu" (heat lamp). The floor is waterproofed. Includes dishes and matting, so it's ready to use for a hedgehog right away. The cage size is 850mm wide, 500mm high, and 450mm deep, providing ample space for a hedgehog to live comfortably. (Please allow for some minor variations) As a bonus, I'm including a "Dantotsu" heat lamp, a reversible heater, a Silent Wheel 30, a Minimal Thermo, a water bowl, a food bowl, and a cushion and sleeping bag that hedgehogs love. The cage alone cost over 30,000 yen, and everything together cost nearly 50,000 yen. It was used for about three years. Since it's been used, there are some scratches on the acrylic, but they don't affect its use. The floor is relatively clean because pet sheets were used. As shown in the photos, the reversible heater has a crack, but it didn't cause any problems during use. Please understand that this is a used item that has been used by a pet, so please purchase only if you are okay with that. It can also be used for small animals other than hedgehogs. - Type: Cage - Material: Acrylic and Wood - Accessories: Dishes, mat, heater, etc. - Size: Medium - Design: Open type #HedgehogCage #Hedgehog #SmallAnimalCage #PetHeater #PetCage #Hamster #HedgehogHome #Hedgehog Thank you for looking.