Theraband Extremity Straps(pr) Wrist and Hand Stretch band is black to Wall Transformers Stretch band is black to distinguish this as the one with extra heavy resistance Viral transport medium (VTM) is manufactured in accordance with the Centers for Disease Control and Prevention's viral transport medium formulation A pair of neoprene straps which can be attached to your arms or legs to increase the convenience and efficiency of exercising with Theraband resistance bands or tubing * You no longer have to worry about the Theraband resistance bands or tubing slipping up or falling down * The extremity strap holds the band firmly and comfortably in place for the duration of your workout * The extremity strap is an excellent tool for working the legs or arms * The Theraband resitance bands or tubing attaches to the strap and the strap attaches to you *