Features: Eyeglass Side Shield offer broad spectrum compatibility, effortlessly fitting most standard sized glasses with a tool less, snaply on design for easy installation and secure protective against debris. Crafted from lightweight plastic, these adjustable shield feature small (4 hole) and large (2 hole) sizes to accommodate lens arms under/over 12mm wide, ensuring a snugly fit without added nasal pressure. Ideal for professional like construction workers, and students requiring frequent eyeglass swaps, these guards prioritize safety without compromising daily comfort. Essential for high risk environments including workshops, manufacturing floors, and chemical labs, they shield eyes from particles during precise tasks or hazardous operations. Combining OSHA recommended side coverage with breathable ergonomics, these reusable shield maintain optical clear while enduring rigorous daily use across industries. Specifications: Component: Plastic Size: 5x4.5cm/1.96x1.77inch (Glasses accessories, not including glasses) Technical parameters: for small (4 holes) fine temples For large size (2 holes) thick temples Package Includes: 4pcs Eyeglass Protectors note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.