If you are still looking for some practical and hamster cage DIY outer tunnel, then your search is over here. That's because our product can satisfy your need. Made from , it is durable and practical. Designed for installing on the cage to increase the fun of hamster activities. Features -Color:Assorted Color -Material:PP -Size:24.00X5.50X5.50cm/9.43X2.16X2.16in -Note:In line with 5.5CM/2.16in diameter can be connected -They are convenient to install on the pet cage firmly, not easy to break or fall off. Also, a funny toy for your lovely pet. -Transparent material, easy to observe hamster activities, so that you can see your beloved pet at any time. -Durable material has long serving time, you can DIY and enrich pet's home. DIY tunnel toys test practical ability and design thinking, conducive to the cultivation of spatial thinking. -Good toys for your pets, your pets will enjoy a funny and happy playing time. -Can be used , easy to install and disassemble without any problems. Package list: 2 x Sets of Tubes