WELL MADE CONSTRUCTION TO MAXIMIZE YOUR WORKOUTS• Yes4All Neoprene Dumbbells are made of cast iron and wrapped in a thick coat of durable neoprene for a comfortable, non-slip grip that is gentle on hands and doesn't require gloves• The special-shaped hexagonal head design helps protect you and the floor in case of drops and prevent them from rolling on the floor when put away• Stylishly vibrant, color-coded weights and clear numbers LBS on make it easy and quick to pick up the right dumbbells for daily routine workouts• Great for indoor and outdoor useSELECT THE APPROPRIATE WEIGHTS• Yes4All Neoprene Dumbbells come in different weights range from 2 lbs to 20 lbs for you to vary your daily routine workout• Heavy dumbbells are perfect for building massive muscle in arms and shoulders, stability, and core strength• Lighter dumbbells are nice additions to add resistance to squats, lunges, aerobic workouts, and many moreBENEFITS OF FULL-BODY WORKOUTS• Increase in muscle size• Burn fat and tone abs• Target your quads, glutes, and hamstrings• Strengthen your shoulders and armsPRODUCT SPECIFICATIONS• Available: 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20 lbs• Sold in pair or set• Cast iron core with Neoprene finish will not crack, rust, or fade• Special-shaped design prevents rolling• Color-coded dumbbells for easy identification60-DAY RETURN and FULL 5-YEAR LIMITED WARRANTY