Ironmaster 75 lb Quick Lock Adjustable Dumbbell System
This is a serious set of adjustable dumbbells for a serious weight lifter. It easily adjusts from 5 to 75 pounds in 2.5 pound increments (with a 120 pound add-on kit included) thanks to its patented Quick-Lock technology. This technology not only allows you to change weights in seconds but it's also compatible with other Ironmaster products. This patented technology makes adjustable dumbbell set the most solid option on the market with absolutely no shifting or movement between plates during your workout. What really stands out about this pick is its solid metal construction which makes it unbelievably durable and the backing of a lifetime manufacturer's warranty.