Production Description: 1: SIZE AND PACKAGE: The running ball diameter about 4.7", 2 pcs with different color cover included. 2: MATERIAL: Made of high-quality plastic materials, transparent, durable and non-toxic. 3: VENT DESIGN: The specially designed vents ensure air circulation during running without causing the baby hamster to get stuck. 4: EASY TO OPERATE: The cover is the entrance for hamster, a buckle point is designed in the middle of the cover, so it will not fall when running fast. 5: APPLICATION: The transparent running ball allows hamster can easily see outside from inside to adjust their direction, and you can also see the funny and lovely appearance of hamster running, a fantastic gift for your lovely hamster. Package Included: 1 Pcs Hamster Running Ball

APPLICATION: The transparent running ball allows hamster can easily see outside from inside to adjust their direction, and you can also see the funny and lovely appearance of hamster running, a fantastic gift for your lovely hamster. EASY TO OPERATE: The cover is the entrance for hamster, a buckle point is designed in the middle of the cover, so it will not fall when running fast. VENT DESIGN: The specially designed vents ensure air circulation during running without causing the baby hamster to get stuck. MATERIAL: Made of high-quality plastic materials, transparent, durable and non-toxic. SIZE AND PACKAGE: The running ball diameter about 4.7", 2 pcs with different color cover included.