Excluder One Way Squirrel and Rodent Trap - Control Mice, Rats, Bats, Squirrels and More - Fine Copper Mesh Wool Included To Seal Hole- Better than Steel Wool - Good for Attic Door (3 x 3 Opening)Brand: Excluder Pro Color: Silver Binding: Lawn & Patio Details: Rodent Excluder One Way Door Animals Can Leave But Not Return Ethical Rodent Control This device is designed to help a trapped squirrel or rat get out of an attic or enclosed area. First you must locate the hole they used to get in. Secure this one way door to the hole. Place some bait at the end of the device to lure the rodent out. Place a camera or trail cam facing the exit hole to