The PowerBlock Commercial Pro 50 adjustable dumbbells are designed for versatile and effective strength training sessions and ideal for building muscle strength and mass. These easy-to-use, heavy-duty hand weights with a patented, compact design replace 9 pairs of dumbbells and offer a weight range of 10lbs-50lbs (4.5kg-22.7kg) per hand in 5lbs (2.3kg) increments. The urethane…