The Eyepiece Lens Cover #10 measuring 1.516 inches with a precise fit of 38.5mm offers optimal protection for your ocular lens. Designed in a sleek black color it not only enhances the aesthetic appeal of your optical equipment but also ensures robust defense against dust scratches and other environmental factors. Its snug fit guarantees that your eyepiece remains secure and well-protected making it an essential accessory for maintaining the longevity and performance of your optical devices.