The Vinyl-Coated Dumbbell is a durable piece of equipment that allows you to strength train anywhere. These durable weights are made of solid cast iron core with a thick vinyl coating that is water-resistant and easy floors. Vinyl-Coated Dumbbells are equipped with a contour grip and are ideal for sculpting your arms, shoulders and back. Highly-portable and with a hexagonal shape for easy storage, they are great for use at the gym, on the go or in the comfort of your own home.