ReadyWrap extender straps are an easy solution to accommodate larger fluctuations in swelling; enabling you to continue wearing your garment. Compatible with ReadyWrap Calf and Thigh units. Simply open the clamp end of your Extender Strap then open your ReadyWrap garment and align the long, vertical piece of Velcro® fastener with the clamp end of your Extender Strap. Insert your ReadyWrap strap completely into the clamp end of your Extender Strap making sure the Velcro® pieces aligns with fabric. Securely fasten the clamp end of your Extender Strap to your ReadyWrap. ReadyWrap extender straps are available in black or beige. If you have had, or believe you may have had, any problems with your veins then it is important that you seek advice from a trained health professional before wearing any compression.