Material:Silicone, ABS,hook and loop fastener. | Jewellery & Watches |. Phone Charms Strap Wrist Rope Cellphone Beaded Lanyard Wristlet for. Simple structure, easy installation and convenient to use especially when you need to use the phone while having exercise activities such as running, riding, hiking and more.This practical and wrist phone holder is in adoption of silicone, ABS material.