【Steel core】 PROIRON weights are built to the highest standards of quality, each dumbbell weight feature a solid steel, tough and stronger than other rubber dumbbell. As PROIRON dumbbell is made of pure steel, the size is much smaller, so our dumbbells weights set men is more suitable strength training for home, gym or office exercise. 【Odorless & never fade】Unlike other rubber dumbbells has stink and fade, PROIRON dumbbell weights is encased in high density and environment-friendly coat, make sure weights odorless for your healthy workout. Our dumbbells set for men reduces noise and never fade, protect home and gym floors/equipment from damage. In addition, our gym weight sets for men pass various tests in european laboratories to offer healthy fitness 【Sturdy & Anti rolling】 PROIRON rubber dumbbells adopt the latest friction welding technology, never to loosen, secure and anti-impact, Special as high-end commercial or home weights such as gym/hotel/club. Unique twelve-sided shape prevents weight rolling away. Flat edges are easy to store on the floor without rolling around, and easily stack on top of one another. Our dumbellsweights also allows for core exercise such as press-ups and planks in safer condition 【Exquisite metal handles】 The delicate knurl on the handles increase hand friction, enhance strong grip and prevents weights slipping and causing injury. Dumbbell 16kg 20kg 24kg come in SINGLE. Dumbbell 12kg 14kg come in SINGLE or PAIR. hex dumbbell Weight set 3kg 5kg 8kg 10kg 12kg 16kg 20kg 24kg pair hexagonal dumbbell rubber dumbbell men