The StrechCordz with Leg straps provides resistance for dry-land leg abduction, adduction, extensions and curls to strengthen muscles and improve swim times.á Also can be used in water for resisted stationary swimming.áThe StrechCordz with Leg straps has two comfortable 2-in/5 cm wide adjustable leg straps that are connected to two, 4-ft/1.2 m tubes and combination mounting loop. Sold as a unit only. No removable components or replacement parts. Available in five resistance levels. The Blue resistance has 14 - 34 lbs of resistance.