Size: Approximately 30cm wide, 46.5cm deep, and 16cm high Materials: Body: Polypropylene, Lid: Stainless steel Bottle Capacity: Approximately 600ml This is a used item, so there may be stains, scratches, discoloration, and marks from a mouse's claws and teeth. However, we appreciate your understanding. There are no problems with normal use, and we have confirmed there are no cracks, holes, or leaks. As you can see, the rubber part of the bottle lid is dirty. We have cleaned it with a brush every time we changed the water, but it has not come off due to aging. Since this is equipment used by animals, we have not cleaned it with chemical detergents. Also, the rubber part has become quite thin, so please consider the bottle as a bonus. If we pack it in a cardboard box, the size will become larger, and the shipping cost will be higher, so we will ship it wrapped in bubble wrap. The photos are representative. Please note that the actual product shipped may differ. This product is equipped with a lid locking mechanism, so adult rats can be kept in it as is. As you can see in the photos, there are two types of lids. One type has stainless steel plates on both ends of the food placement area, and the other does not. There is no effect on the breeding even with the type without plates. We are very sorry, but you cannot choose the type of lid. We would like to ship the one with plates for the first shipments. Thank you for your understanding. We may have more stock than the number of items listed, so please contact us if you want more than the listed quantity. This is a used item, so please understand the above.