[ Your Eyeglasses]The upgrade glasses strap will fit securely around the ends of your glasses, and keep your glasses in place, no slipping or breaking any more so you can do anything freely.(Please note the size does not mean the length of strap, it refers to the silicone round head size. S - Temples above 2.5mm: 0.1 inch, L - Temples above 5mm: 0.2 inch.) [Adjustable Eyeglass Strap]Both ends of the eye glasses string strap adjustable slider, you can adjust according to the size of your head, your glasses will no slip off secretly, 't need to your hands to hold the glasses frequently, and you can also directly prevent the germs from your hands from being brought to your face. [Quality Material]The glasses holder strap is made of silicone + steel rope, Not easy to deform, aging and break, It's durable. Soft & lightweight design a comfortable wearing feel, Quick and easy to put on and remove.Sunglasses strap long enough to take glasses off your face and around the neck when not in . Colour:black Material:Steel wire + silicone Package Contents: 3 * Universal Glasses Strap 6 * Glasses Ear Grip Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.