This combo pac contains two 1 lb. Heavyhands® handles and four 1.5 lb. end weights which will allow you to create two 3 lb. Heavyhands handles. Create your own individualized Heavyhands weight system by varying use of your add-on end weights. You can combine strength, endurance and flexibility in every workout. You can also vary the intensity of your workout three ways with the Heavyhands Combo-Pac: Changing weights, range of motion and tempo.A brisk walk with Heavyhands pumped a few inches above the head can double the caloric burn of walking. The Heavyhands integrated exercise system provides endurance, strength and flexibility in every workout! Heavyhands provides 90 minutes of exercise benefits in just 30 minutes which allows you to burn more fat and build more lean muscle. The glove-like comfort of Heavyhands will help prolong your workouts with less fatigue. So "muscle up" and use Heavyhands during you aerobic workout activities.Add-on weights can be added from 2 - 10 lbs. in 1 lb. increments for added resistance. Workout and instruction guide included.