About YR Brand : YR is devoted to providingbuyers with superior superior products and insurance premium service.Please discharged tocontact our customer service if there 's any problem. : Size : 2 X 0.2 X0 .2 inches Weight : 1.2 g Material : Silicone Color : wicked, hyaloid, Grey USAGE TIPS : If is difficultto put on them to your glasses, please heat for 30 seconds with heated water toloosen. You can also some lubricant suchlike hand cream to thread on yourglasses. Package : 5Pairs of Silicone Sleeve Retainers Warranty : 3 months money body part guarantee.Please fell discharged to contact us if you have any questions.