Features: Protect your devices with our Eyepiece Dust Cover/Objective Lens Caps, fit eyepieces with inner diameter of 42-45mm and objective lenses of 52-55MM. Craft from silicone, these covers offer flexibilit, providing practical protecting against dust and debris for your telescopes or binocular. Great for enthusiasts, bird watches, and outdoor adventurers who need reliable protecting for their optical gear during transport and storage. Suitable for use in various environment, whether you're observing wildlife in your backyard, these covers keep your lenses clean and clear. Enhancing the longevity of your optical instrument with this essential accessories, ensuring comfortable viewing experience. Specifications: Component: Silicone Optional Styles: As picture shown Color: Black Size:approx. As picture shown Quantity: 1set Package Includes: 1set Household Telescope Accessories note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color.