MB Pre-Formed Lamination Kit #2 contains 24 rods which are 3 1/2" long and fit the following coil spring traps: #1 1/2 Montgomery (Round Jaw) and #1.65 Bridger (Round 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.