Specifications: Pocket size easy to carry and enough to hold pet rodent/ mice/ hamster. Allows the hamster to mix play and exercise enjoyable and help it keep fit and in good shape this ball can also be as cage to carry pet out. Ideal for hamsters gerbils mice or other small animal. Doors unlock by twisting anti-clockwise and then put your pet in. Type: Hamster Ball Material: Plastic Features: Multi Function Easy to Use Solid Color Durable Size: 10cm/3.94 (Approx.) Notes: Due to the light and screen setting difference the item s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hamster Ball (Others Not Included)