Specification Brand : Generic BulletPoint1 : 【Comfortable Angle】 - Designed with a 45-degree angle, our 45 degree diagonal prism allows comfortable downward viewing from a refracting telescope mount while providing a correct image, accommodating extensive viewing sessions. BulletPoint2 : 【Dust Cover Inclusion】 - The diagonal mirror adapter comes equipped with a dust cover, ensuring the cleanliness of the lens at all times thereby enhancing its longevity. BulletPoint3 : 【Ease of Use】 - Our diagonal mirror prism is extremely user-friendly. Easily connect it to your 1.25inch telescope on one end and screw a 1.25inch eyepiece on the other, and enjoy exploring the celestial world. BulletPoint4 : 【 Material】 - The 45 degree erecting prism is crafted with plastic and optical glass lens, which enhances its durability while providing clear and images. BulletPoint5 : 【Multi-Purpose Device】 - Our 45 degree diagonal mirror prism is not just a simple viewing tool. With its ability to connect filters and extinction processed interior, it is suitable for both astronomical and terrestrial observations. ExternallyAssignedProductIdentifier : 7447924252574 ItemName : 45 Degree Diagonal Mirror Prism, Diagonal Mirror Adapter 1.25inch 45 Degree Diagonal Prism with Dust Cover for Astronomical Observations ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 11 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : telescope-diagonal-mirrors Manufacturer : Generic ModelName : Genericwbgsid32c6 ModelNumber : Genericwbgsid32c6 NumberOfBoxes : 1 PartNumber : Genericwbgsid32c6 ProductDescription : 1. Multi Purpose: The 1.25inch diagonal prism supports connecting filters, and the interior is processed with extinction, which is suitable for astronomical and terrestrial observations. 2. 45 Degree Angle: The 1.25inch diagonal prism is designed with a 45 degree angle, allowing you to view the correct image from the refracting telescope mount and look down at a comfortable angle. 3. Dust Cover: The 45 degree diagonal mirror prism comes with a dust cover to keep the lens clean at all times, extending its lifespan. 4. Ease of Use: The 45 degree diagonal mirror prism is easy to use, just plug into the 1.25in telescope on the silver end and screw the 1.25in eyepiece on the other end. 5. Material: The 1.25inch 45 degree diagonal prism is made of plastic, optical glass lens, providing clear and acuminate images.