The SweatShop Silicone Eyeglass and Goggle Holder/Retainer Strap Super soft silicone material | Outdoor sports Essential goods | Super elasticity, and can stretch to: 50 cm above | Application: Suitable for all ages people, especially for those love sports people | Specification: Material: Silicone Total Length: 22 cm(Stretchy) | The widest part of the middle: 10mm | Earstem perforation width: 0.9 cm x 0.2 cm | Available Colours: Black / White / Pink / Blue / Yellow