Size S - Length x width: 20 x 20 cm, suitable for hamster, golden bear, baby rat, sugar glider, etc. Material: Made of comfortable, soft and superb quality material, coral fleece + fleece arctic, it will provide a safe and super comfortable resting place for your loved one, offering unparalleled warmth and comfort. Hammock Importance: Full utilization of the large space of the cage, the hammock is always a great cage accessory to make it stereoscopic by attaching it with clips. Dual-layer bed: double-layer for pets, it is a good option to meet their nature of running in the tunnel back and forth where they can relax at the top or cuddle up at the bottom. Easy to use: easily and quickly attaches to the inside of the cage with 4 metal hooks included.