Snap JointElecrainbow Sports Sunglass Safety Strap/ Protective Eyewear Retainer - Spare Silicon Temple Tips (5 Pack, Black) Newly Snap Joint design, healthy and comfortable for the ears Temple tips material: Soft and durable Silicon Color:Black; Convenient Pack: 5 Set of Straps and Silicon Temple Tips Lightweight design perfect to make your glasses more tight when you're working or having sports Perfect for Boating, Sailing, Exercise,Golf, Hunting, Fishing, Running, Tennis, Yoga, Traveling