Spectacle End Connectors Adjustable Eyeglass Strap Eyeglass Chain EndsAdjustable and Anti-Slip:Metal coil can be moved by wearer to adjust the eyeglasses,which can help you adjust the grip of the glasses, you can adjust the metal coil on the ends to fit your glasses leg.Move the metal coil hoop that sliding up means lockand sliding down means unlock.Rubber ring will make the chain stable on your glasses and have effect on non slip.Quality Material:These spectacle end connectorsare mainly made of quality soft silicone and durable metal,flexible and easy to use,providing long servicing life,which can offer you nice use experience.Wide Application:This type of silicone ring is an accessory for glasses chain,which can connects glasses chain with your glasses leg.These designed glasses accessories are very useful item in your daily life,which can prevent your eyeglasses from accidentallyfalling or losing and can be worn with your clothes to present a variety of styles.Also great for any handcrafts objects that require end loops and stationary hoops,such as a decoration for sunglasses and sports eyeglasses strap.Color: black+whiteSize: 20mm*5mmDelivery quantity: 60 piecesWarm prompt:1. As different measuring methods, it will occur 1-3 cm deviation about the items, please ensure that it is okay for you before ordering.2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding3. Only the above package contents, excluding other products.