The Harris Catch & Release Humane Trap is made for Rats, Mice, Chipmunks, and Small Squirrels, Voles and Hamsters. The humane trap won't harm animals and is made with thick steel to ensure that animals will remain trapped until you release them. A "no kill" replacement for traditional baits, poisons and traps, this cage trap allows for easy catch and release without the hassle of clean up. Dimensions are: L: 9.25" x W: 4.3" x H: 4.5". The steel is rust and corrosion proof and can be used over and over in both indoor and outdoor settings. It's easy to bait and set and has open meshed wiring that allows for plenty of air circulation while the rodent awaits release.