The york 175kg rubber hex dumbbell is perfect for gaining strength and muscle building workouts it weighs 175kg 386lbs and is designed for light commercial usage only the dumbbell utilises rubber hex shaped ends to ensure supreme durability and protect floors as well as to diminish the noise the ergonomically shaped chrome plated knurled handles ensure comfort and control while the torque threaded heads are attached to thick 35mm robust steel shaft for improved strength of the headh