Resistance fitness band for men and women. Ideal for home or travel use. Dyna Band requires minimal space. Its portability and verstility makes it ideal as a training aid to maintain strength and flexibility whilst travelling. Never go away without yours! The concept of Dyna Band originated in hospitals for use in rehabilitation to strengthen and repair muscles after injury. This idea has been developed further to produce a fitness/training aid to enhance physical performance. Helps tone, strengthen and condition your entire body as well as building endurance, relieving stress and increasing flexibility.Colour Coded:Pink: Light Use for rehabilitation after injury and for younger users.Green: Medium Use for warm up and agility and flexibility training.Purple: Heavy Use to maintain muscle strength and increase speed and endurance.Grey: Extra Heavy Use to build and strengthen muscles.