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. With this 7 lb. add-on weight package you get four 3 lb. add-on weights. You would add two of the 3 lb. add-on weights to each side of the Heavyhands 1 lb. handle to total 7 lbs. for each handle. Comes with handy carrying case.