Ironmaster Quick Lock Dumbbell 120 lb Add on Kit;

The Quick-Lock Dumbbell Add on Kit adds 45 lbs to each dumbbell to bring them up to 120 lbs each. This kit makes adding extra weight quick and easy and includes 4ea. longer locking screws and 4ea. 22.5 lb weight plates. You can put the "big" plates on the handles first or add them on top of the original plates. Very simple to use. The longer locking screws allow dumbbell sizes of 70-120lbs. - This is an add on kit and does not include the full Quick-Lock Dumbbell System. You can purchase the 45 lb or 75 lb Quick-Lock Dumbbell System separately.