Each end weight set contains four add-on weights (two pair) to be added to 1-lb. Heavyhands® handles, so you can create various increments of weight. Heavyhands® adjustable hand weight system allows you to easily customize your workout by varying use of your add-on end weights, so you burn more fat and build more lean muscle. Add-on Weight Example: 1 lb. handle + two 4.5 lb. end weights = 10 lb. total weight