Binocular Rainguard / Eyepiece / Eyecup Cover Rubber Caps Sizes 42-45MM MeasuringPlease measure the Ocular Lens outer tube's diameter to get accurate sizing, please choose the lens cover with the internal diameter which matches your measurement, it will fit perfect. If the diameter is different, please choose a different size. ProtectionThese covers protect your lenses from rain, dust and scratches in any weather or environment. They also offer protection to your lenses in transit and storage. Easy to Remove / AddPlace the rainguard cover on the Ocular Lenses outer tubes to protect your lenses. You can conveniently attach to your binocular strap to keep within easy reach. DesignThe high quality one piece flexible cover stretches for a tight fit. This ensures optimal protection for each Ocular lens. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store