Nike Grind Curl BarThe first of its kind, the Nike Grind Dumbbell is crafted from Nike Grind rubber, a byproduct of Nike's footwear manufacturing process. Measured by total product volume, each dumbbell is made with at least 20% Nike Grind rubber. With prominent swoosh branding and numbering, robust rubber, and sculpted edges, this dumbbell offers both durability and comfort for all your training sessions. Key Features Nike Grind: The Nike Grind Dumbbell is made from at