Solid Wooden Tunnel Tube Toy Forest Hollow Tree Trunk for Hamster Mouse Rabbit Material:Wood Set Type:NO Type: Small Animals Size: S: 15cm in length and 90g in weight L: 20cm in length and 150g in weight Tag: Hamster toys, hamster tree holes, hamster pipes, hamster molars Feature: Toys Outside diameter about 6cm, inner diameter 3.8cm. 6 holes on the side with a diameter of 3 cm, the natural wood data will have a little error. Tree knots and peeling are normal natural phenomena, this product itself is for playing and has a molar chewing effect, does not affect the use. Package Include: 1 * Tree Tunnel Notes: 1. Please allow 1-3 cm difference due to manual measurement and 3-5 g for the difference between different colors. 2. Due to the screen difference, the color may be a little different from what you expect, please allow it. 3. 1.00cm=0.39