Our eel traps have a PVC coated wire mesh funnel with a hinged door that is folded in on 3 sides to keep your eels from wiggling out. Don't be surprised if a few green crabs also find their way into this trap. Our eel traps are constructed from 1/2 inch square vinyl coated steel mesh with stainless steel fasteners. The trap measures 12 x 12 x 24 inches.