Features: Your eyewears stability with these anti slip glasses sleeves silicone, designed to grip and prevent slippage during active movements. Featuring lightweight construction (1g/pair), two versatile color option(black/white or black/black), and tool 5 second installation for effortless customization. Ideal for athletes, commuters, and fashion conscious users seeking secure, comfortable eyewears across ages and genders. Perfect for high intensity workouts, cycling, running, or daily wear, ensuring glasses stay firmly positioned in dynamic environments. Engineered with reinforced silicone for 3x longer durability than standard plastic grips, offering support for outdoor adventures and extended indoor use. Specifications: Materials: Silicone Color: black and white pattern/black pattern Technical parameters: Weight 1g/pair Package Includes: 1 pair x Glasses anti-slip foot cover note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.