Size:2.5mm eZAKKA Black and Transparent Eyeglass Sunglass Glasses Spectacles Silicone Anti-slip Stick on Nose Pads Set Material :Soft Silicone 1 Piece Size:14 x 18mm How To Use: Before Sticking them: 1.Wash your hands 2.Clean frames with lsopropyl Alcohol 3.Remove sticky backing carefully avoiding contact with skin 4.Apply nose pad to frames There are 2 Types of Usage Method One: Wrapped Sticking: Compatible with the frame with relatively short and small nose pads. The big part outside is for padding, and the small part inside helps strengthen fixation and padding. Method Two: One-side Sticking: Applying to the frame with relatively wide nose pad which needs narrowing. Before sticking, use scissors to shear the small part of the pad, and then stick the big part to outside the pad for anti-slipping and padding. Package Including: 5 x Black Silicone Anti-slip Nose Pad 5 x Transparent Silicone Anti-slip Nose Pad Customer Service: If you have any problem of our product, you can click “seller contact” button in your Amazon account to email us. we would be delighted to help you and we will reply as soon as we can.