1. ANTI-SLIP & SHOCK-PROOF - Our eyewear retainers come with anti-slip and shock-proof design which assures a perfect fit and prevents glasses from slipping and falling down during strenuous exercise. You can wear your glasses comfortably and not be pushing them back in place all the time! 2. SOFT AND SAFE MATERIAL - Our eyeglasses stoppers are made of high-quality silicone, 't go yellow nor turn hard, allergy-free, odor-free, very comfortable, It 't hurt your ears or stick to your hairs 3. HIGH APPLICABILITY - Fits almost any pair of eyeglasses, reading glasses, sunglasses whether the temples are thin or thick. 4. WHAT YOU WILL GET - 16 pairs include 4 styles glasses retainers, circle ones, comas ones, strip ones, etc. Kids and adult can both use these eyeglasses temple holders. : Fit glasses: For glasses legs from 0.3-1.2 cm Sleeve Retainers Length: 2.12Inch Glasses Ear Hooks Length: 1.7Inch Circle Shaped Glasses Retainer Outer Diameter: 0.57Inch Inner Diameter: 0.31Inch Comma Shaped Glasses Retainer 0.7x0.5x0.2Inch Install and clean: Simply slip a frame grip up each ear piece to a comfortable position on your ear. The resulting flexible tension will give a tight, comfortable fit. Very easy to clean, just use soap and water wash them. Leave it to dry naturally, or even assist the process with a hair dryer. WARM TIPS: PLEASE NOTE THE PRODUCT IS NOT A TOY AND THE PACKAGING INCLUDES ACCESSORIES. PLEASE KEEP IT FROM BABY AND PETS. colour: black + transparent color Material: silicone Package Contents: 2 Pairs x Black Sleeve Retainers 2 Pairs x Clear Sleeve Retainers 2 Pairs x Black Ear Hooks 2 Pairs x Clear Ear Hooks 2 Pairs x Black Circle Shaped Glasses Retainers 2 Pairs x Clear Circle Shaped Glasses Retainers 2 Pai x Black Comma shape Glasses Retainers 2 Pairs x Clear Comma shape Glasses Retainers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.