Our exclusive Trap-Link™ shelter connection system allows you to link one Fish Trap to another; Clam to Clam; or Fish Trap to Clam. 2005 and later Fish Trap Pros, Guides, Yukons, and Voyagers, as well as 2006 Clam 5600's, 6800's, and Sleepers come standard with zippered Trap-Link doors to facilitate the Trap-Link connector.