3 kind resistances: light, medium, heavy, color correspondingly from light to dark for easy recognizing them. New fabric material, comfort, thick and non-slip, prevents rolling or snapping. Perfect fitness bands for waistline, booty, and leg shaping exercises. Order by set (lightx1, mediumx1, heavyx1, mesh bagx1) or single unit both ok, price for single unit. 3 kind resistances price are same, if you need by set, price is unit pricex3, and will gift you a mesh bag.