MB Pre-Formed Lamination Kit #12 contains 24 rods which are 5" long and fit the following coil spring traps: #3 Northwood (Square Jaw) and #3 Bridger (Square Jaw). Each kit comes with 24 rods -- the amount needed to laminate the jaws of 12 traps. These rods are made to be welded to traps' jaws.