Durability at it's Finest! It protects floors and equipment while resists cracking and fading. Made from solid cast iron with a 6-sided anti-roll design and encased in virgin rubber, this dumbbell is durable as it is stylish. Through this low maintenance design, the heads are securely fastened with a uniquely designed pin mechanism. The item "NEW Strencor 40 lb Rubber Hex Dumbbell PAIR (80 lb Set) SAME DAY SHIPPING" is in sale since Friday, April 10, 2020.This item is in the category "Sporting Goods\Fitness, Running & Yoga\Strength Training\Dumbbells". The seller is "fitking" and is located in Charlotte, North Carolina. This item can be shipped to United States.