Keep your glasses handy. Soft and comfortable, Skullerz 3200 Cotton Eyewear Lanyards are easy to incorporate onto nearly any pair of glasses that feature standard, rather than exaggeratedly hooked, ear pieces. Simply feed your frame's temple pieces into the lanyard's elastic ear-piece-receiver openings to get a snug fit that will keep your glasses secure. A behind-the-head barrel slider allows you to easily adjust the overall hang-length. Non-conductive, 100% cotton lanyard and hard-plastic length-adjustment slider ball.