Description This is a tunnel plug and connector set designed for your pets to play and exercise. If you want to build a tunnel paradise for your baby hamster, then this tunnel plugand connector setis your essential tunnel paradise accessory. Features -Color: As shown-Material: ABS, Steel-Size:21.20X6.30X1.50cm/ 8.33X2.48X0.59in - Provide a safe area for curious critters to explore and to promote healthy habits. - You can install them on the pet cage to increasethe fun of hamster activities. -Good toys for your pets, your pets will enjoy a funny and happy playing time. -Can be used outside the cage, easy to install and disassemble without any problems. -Feel free to DIY hamster maze and create an interesting playground for your pet. Packing list: 1 x Tube Plug1 x Connection Board1 x Big Pliers1 x Set of DIY Tunnels