HAND-AID* Arterial Replacement Straps, Pad & Starter BlockOur best selling HAND AID* Arterial Wrist Support has padding that makes it easier to achieve an arterial puncture with a patient's wrist in the hyper extended position. It also has a foam starter block that helps provide a better view and helps facilitate the successful insertion of a catheter on the first try. Unlike some IV supports which use harsh tape that can irritate skin our entire line of HAND AID* IV supports is designed with you in mind.