Color as shown Size: 10*10cm Weight: 200g Exercise decompression: If the hamster does not get enough exercise, it will bite the cage due to excessive stress. Hamster balls can help hamsters exercise, prevent excess weight and relieve stress. Card Cover Design: The hamster ball has two detachable loops. When walking around the cage, you can choose a lid with a large opening so hamsters can get in and out freely. When you play outside the cage, choose a lid to prevent the hamster from running away. Material: The hamster ball is made of high quality plastic, which is safe, non-toxic, environmentally friendly, durable and care for your pets’ health. The stand is made of high quality metal, sturdy and durable. Fix the rail with , which is more solid and safe. Ventilated Design: The hamster ball is specially designed with ventilation holes to improve air circulation when running. The vent opening is made in such a way that the hamster will not get stuck. Equipped with detachable stand: The