1Made of pure natural applewood, it is safe, healthy and wearresistant, and small animals can chew safely. 2Pets with climbing ladders can easily climbing, can also eat on the platform, and run back and forth in the tunnel. 3It helps hamsters exercise and develop their intelligence, and adds fun to hamsters, they can play freely. 4Playing in multiple places increases the hamster's chewing fun and easily relieves the hamster's anxiety. 5Easy to install, for pets to hide, sleep, climb, eat and play, helps reduce their boredom.