Anti-Static Wrist Strap is used to safely ground a person working on sensitive electronic devices like iPhone, iPad, or any other phone or tablet or electronic device. The wrist strap prevents buildup of static electricity on a person. When working on any do-it-yourself electronic project, it is advised to wear the anti-static wrist strap to keep you safe, as it will prevent the possibility of static damage. Wearing the strap, you ground yourself and eliminate the possibility of causing shorts or sparks that can lead to faulty motherboards and other damage.