- Important Note: The aperture size refers to the inner diameter of the lens cap, which should match the outer diameter of your telescope. Please measure the diameter of your telescope before purchasing to ensure compatibility. - Individual Purchase: Lens caps are available for purchase as single pieces, allowing you to buy exactly what you need. - Wide Range of Sizes: Our lens caps come in various inner diameters to fit your specific requirements: 25.5 mm, 28 mm, 30 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm, 46 mm, 47 mm, 48 mm, 49 mm, 50 mm, 51 mm, 53 mm, 57 mm, 58 mm, 59 mm, 60 mm, 61 mm, 62 mm, 64 mm, 65 mm, 66 mm, 67 mm, and 69 mm. - Durable Construction: Made from high-quality plastic, these lens caps are designed for durability and resilience, ensuring they will last and not easily break. - Practical Use Cases: 1. Protect your telescope from dust and scratches during storage or transport, enhancing its longevity. 2. Ensure optimal performance by preventing moisture and debris from entering the telescope when not in use. 3. Easily switch between different lenses in your astrophotography setup, maintaining lens integrity while capturing stunning images. Choose our lens caps for reliable protection and compatibility with your telescope.