WCS™ Maine Style Trap Setters (Pair) are specifically made for setting coilspring traps #1.65 and above (generally up to #4) for Victor, Bridger, and Duke traps. The will also fit Minnesota Brand (MB) 550's. There is a slot cut in each of the metal plates on the end of the setter handles. The Maine Trap setters are used as a pair, one fitting on each trap lever on opposing sides of the trap. Center each trap lever within the slot and then draw the Maine setter handles together. This depresses each lever to a point where the jaws fall open, allowing you to set the trap. You can also hold the set trap in one hand utilizing the setter handles. This product is available on our website as well as in our store.