12 PAIRS GLASSES TEMPLES COVER: Comes with 12 pairs eyeglass holder temples in 4 colors( black, white, gray, brown), each colors 3 pairs, quantity enough to meet your daily replacement need QUALITY MATERIALS: Made of high quality plastic material, soft and non-slipping, light, not easy to deform and break. They are comfortable to wear and easy to adjust, you won't even notice they are on the glasses. SUITABLE SIZE: Each spectacle retainers is about 0.71 inch(18mm) wide, 2.17 inch(55mm) long, 0.20 inch(5mm) thick, hole: 0.12 inch(3mm) NON-SLIP DESIGN: Glasses non slip protectors can effectively prevent your glasses from sliding down and falling off by adjusting them into a proper position. They can protect you well when you are running, jumping and playing sports. WIDELY APPLICATION: Glasses Stoppers are applicable to most eyeglasses, reading glasses, sunglasses for adults. They can be used in diverse situations including outdoor activities, exercising, studying and working.