Use: Insert handle into the slot of the corresponding colour, according to the part you need to exercise. Fitness equipment: Get a foldable 16-in-1 push up rack board. Colour co-ordinated: The board works your chest (blue), shoulders (red), back (yellow) and triceps (green). Multifunctional: Exercise your upper body muscles in an all-round way. Fitness: Try using this board for 30 minutes a day to burn calories, increase strength and lose weight. Foldable 16-In-1 Push Up Rack Board | Living Social