Description: This interesting tunnels will attract your hamster to climb that will expand their living space and enhance their ability to explore. Featuring with transparent pipe design so that you can see the hamster state in the pipe through the transparent pipe easily. Made of plastic material, durable and lightweight. The diameter of this product is approximately 5.5-5.8cm. This product is perfect for guinea pigs, chinchillas, hamster, rats and more. Item Name: Hamster Tunnel Material: Plastic Features: Lightweigh, Durablity, Transparent, Connectable Size Details: Diameter: 5.5cm-5.8cm/2.17"-2.28" (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: 3 x Entrances 1 x Bends Pipe 1 x Short Pipes 1 x Long Pipe 10 x Connectors