Introduce both safety and excitement to your little one's playtime with our transparent exercise ball. Designed with pet safety in mind, this ball boasts ample vents and a polished surface, ideal for curious hamsters to explore the world around them in a secure and funny environment. Features -Color:White -Material:Plastic -Size:12.00X12.00X12.00cm/4.72X4.72X4.72in -Diameter: 12cm -Smooth rolling: With a sleek surface and round shape, this hamster running ball promotes effortless rolling for an uninterrupted glide across various floors. -High visibility: The transparent design of this small pet exercise ball allows for unobstructed observation of pet's playful behaviors and explorations. -Breathable adventure: Ample air holes on this hamster ball promote continuous fresh air flow, maintaining a comfortable environment for your hamster. -Gentle on : The smooth interior and exterior of this hamster exercise ball reduce the risk of abrasions or discomfort for your pet's delicate paws. -Easy maintenance: The small pet running ball is easy to open and assemble alike, sturdy and washable, providing a playing environment. Package list: 1 x pet running ball