Land setters- set your traps faster and better than ever before, do away with smelly pan covers. Model A is for the Victor 1 1/2 coilspring and Blake & Lamb 1 1/2 and 2 coilspring. Model B is for the Victor 1.75 and #2 coilspring . Model C is for the Victor # 3 and #4 long springs and #3 and #4 coilsprings.