NÜOBELL 580 AshThe NOBELL 580 adjustable dumbbells define what serious strength training is supposed to feel like: 80 lbs of on demand resistance that moves as fast as you do. This is the standard against which every other adjustable dumbbell is measured, engineered for athletes who refuse to compromise between the compact footprint of an adjustable system and the authentic biomechanics of a fixed weight. Patented twist handle mechanism Instant weight selection from