Packed in a heavy-duty carrying case, the kit comes with locking band pliers with textured non-slip grip and six bands for pistons ranging from 2-7/8 to 4-3/8", 73 to 111mm. The locking band pliers, which feature a fine locking ratchet allowing precise adjustments of the ring bands. The rings fit a wide range of motorcycles, from dirt bikes to big V-Twins, from 2-7/8 to 4-3/8", 73 to 111mm cylinder bores, all-in-one kit. Piston ring bands are identified with bottom of cylinder markings for easy installation.