Completely transparent running balls: It will not affect the pet’s running vision in the inside, the owner can also see the pet.
Porous design: Increase the ball friction and air circulation, pets will not heat or feel difficult to breathe staying inside for a long time.
Adopt environmental protection plastic material, safe, non-toxic,no smell.
Easy to operate.
A very suitable toy for hamsters and golden bears.

Specifications:
Material:Plastic
Diameter:10cm-3.94inch,12cm-4.72inch
Color:Blue,Pink