( 3 1/2") For #1 3/4 Northwood Round jaw coilsprings.
Lamination kits are used to widen and strengthen a trap's jaw to help prevent foot damage and to keep the jaws from disloding out of the frame. Packed 24 - 3/16 rods to a kit (enough for 1 dozen traps). Rods are pre-formed to fit the specified trap. Just clamp and weld.
