Maximize your fitness potential with this one of kind cross training fitness product? The Health Mark Body Tone Foam Exercise Blocks with Weights are sold in pairs and are constructed of high density foam. Each block has a 2 ½ pound removable chrome dumbbell. The blocks provide the best functionality of Yoga, Pilates, and Strength/Cardio Weight Training. Use the foam blocks to increase the flexibility of your yoga poses or Pilates and isometric movements; and then use the dumbbells to perform strength/cardio weight training exercises. When the dumbbells are not in use, the foam padded dumbbell bars function as a center beam for the exercise blocks to provide a comfortable means of maintaining the wrists in a safe supine position. The versatility of this item makes it a perfect travel companion.