CKANDAY 4 Pack Anti Slip Kids/Adult Eyeglasses Straps with 4 Pair Ear Grip Hooks, Safety Glass Holders Eyewear Retainer for Sports Men Women Eye Protection -4 Colors

Durable Materials:Made of flexible silicone material, No allergies, durable and comfortable to use.Soft, durable, adjustable, Fits most frames, colorful, fun , washable., Multi-Functional:The sports glass strap and ear hook sets reduce eyewear slippage and prevent loosing glasses from face. Keep your glasses safe when you doing indoor or outdoor sports or activities. They can be used together or alone., Humanized Dimensions Design: Eyeglass Strap Length: 8.46in/21.5cm (Elastic design allows to stretch up to 15.7in/40cm); Ear Hook Length: 1.45in/3.7cm.,