The RELIFE 15lb rubber hex dumbbells knurled handles with protective coating providing long-lasting performance. The Hex shaped dumbbell heads ensure the dumbbell will not roll when set down, avoiding injuries and allowing for easy storage. The benefits of dumbbell exercises include muscle building, improving core strength, boosting balance, promoting better bone health, increasing energy levels, enhancing overall mood and more. Dumbbells are used to exercise all major muscle groups, including arms, chest, back, abs, legs and core. Use these dumbbells to start your fitness program, targeting individual muscles or the entire body. Material: Metal, Rubber Item Weight: 15 pounds Quantity: 2