éEyeglasses Chain is an elegant addition to any eyewear. EASY TO USE - Adjustable eyeglass chain ends with metal coils. (Simply move the silver coiled metal piece so it will hold tight to the ear wires of your glasses)Warm Tips :1.Avoid contact with any lotions, hairsprays or any other chemicals that might damage the original properties. 2.Please use a soft, dry cloth to wipe off perspiration and dirt form the eyeglass chain.é