Single 55lbs adjustable dumbbell Color: Black Product size: 484x216x183mm Packing: 1set/carton Material:Carbon steel+PP+Nylon High strength Nylon handle, anti-slip handle. PP dumbbell tray has no peculiar smell. Carbon steel dumbbell piece is cut by laser cutting machine, covered by Nylon Rotate handle to adjustable dumbbell quantity and weight, dumbbell weight range from 15 - 55 lbs (6.8-24.5kgs), there are five levels including 15,25,35,45,55lbs.