10/12cm Plastic Rodent Mice Running Jogging Ball Hamster Gerbil Rat Exercise Funny Small Pet Play Toys Feature: 1. The whole body can be washed. 2. The operation is simple, the cover can be removed by rotating. 3. Porous design to ensure air circulation. 4. Semi-transparent ball body, you can observe the pets inside. Specification: Item: , small pet running ball hamster toy transparent roller fitness crystal sports runner Material: plastic Size: 10cm/3.94in, 12cm/4.72in Color: Blue/Pink Weight: 10cm 47g, 12cm 72g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 x Mice Running Jogging Ball