Features: Made of high quality wooden material, sturdy and durable. All finishes are non-toxic, safe and Eco-friendly. Natural wooden color makes to draw your pets' attention, and they gonna it! Can also be used chew toy, which is good for your hamster's . Perfect exercise tunnel for your pet hamster to have fun and do exercise! Specification: Material: Wooden Color: Wooden Size: S: (Dia.) x (L.)5.5*15cm / 2.2*5.9 inch(Approx.) L: (Dia.) x (L.)5.5*20m / 2.2*7.9inch(Approx.) Package Included: 1 x Animal exercise tunnelNotice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.