The Eyepiece Lens Cover #20 is a sleek and essential accessory for protecting your valuable optics. Designed specifically to fit ocular lenses this black cover is crafted with precision to accommodate lenses with a diameter of 1.775 inches or 45.1mm. Its durable construction ensures long-lasting protection against dust scratches and other potential damage while its snug fit keeps the lens secure. Ideal for telescopes microscopes or any optical devices with compatible dimensions this lens cover combines functionality with a minimalist design making it the perfect addition to your optical gear.