Package contains 10 single-use Y-shaped PowerStrips - each strip can be worn 3-5 days * Y Strip is 2 inches wide x 8 inches long unstretched - 140% elasticity allows for a variety of body sizes * One size fits most (small child to adult) * Numbered, serrated backing for simple step-by-step application * Available in 4 colors (beige, black, blue, pink) and 2 adhesives (regular and gentle)