"Tsutsumare Nyan Mock" (Wrapped Cat Hammock) - Yellow x 2 Approximately 42 x 42cm, suitable for cats up to 8kg. This type attaches to a cage, offering a cozy, wrapped-up sleeping experience. I took them out of the box and tried to install them, but my cats didn't go in at all. I purchased these last weekend and tried them for only one day before putting them back in the box. They are almost unused, but please understand that they have been opened. [Product Details] Product Name: Tsutsumare Nyan Mock (Wrapped Cat Hammock) Size: Approximately 42 x 42cm (up to 8kg) Color: Yellow Attachment Method: For cages"