The Koro Live Beaver Trap is measured 36"x30" and is constructed of an aluminum frame held together with steel rivets. The metal parts on the Koro Live Beaver Trap are hot dip galvanized for a a very extended trap life. The Koro Live Beaver Trap works just like a clam. You simply mount your bait (fresh poplar stick) with a lure of your choice 10-12 inches above the pan. This trap works amazingly well. Nearly a guarantee that you'll have a beaver in the morning, but trap wise beaver are still tricky. The Koro Live Beaver can be used to relocate beaver for special projects. The Koro Live Beaver Trap can also be used for catching Otter and Raccoons. Replacement beaver trap parts are also available.