Feature: MATERIAL: 100% Soft quality silicone glass spectacle retainers, sunglasses retainers, won't go yellow nor turn solid, with no feeling of sore ears after use, and even you will forget to wearing them. APPLICABILITY : Fits almost any pair of eyeglasses, reading glasses, sunglasses. ANTI-SLIP:Soft silicone glass spectacle retainers,silicone nose pads, Reduces slippage and prevents loosing glasses from face,very easy to apply to your (sun) glasses. AMAZING COMBINATION:16 pairs include 4 styles with 2 colors,each color 2 pairs. ESPECIALLY: Nose-pads thickness available in 1.8mm, industry glue on the backing of nose pads are specially designed to prevent glasses from easily slipping while you are working or doing exercises. They work better in combination with other glasses anti-slip products. Item Type: Glasses Anti-slip Kit Material:Silicone Color: Black&Clear Type: 4 Types Sleeve Retainers,Round Retainers,Ear Hooks,Nose Pads Size: More detailed,please see photo, Quantity: 16Pcs Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Functions: Don't worry about your glasses slipping off your face. Avoid the embarrassment of strenuous exercise Parcels includes: 4 Pairs Sleeve Retainers 4 Pairs Round Retainers 4 pairs Ear Hooks 4 Pairs Nose Pads