Check the listing for details. 2''(M42 Thread) to 1.25'' Adapter Sleeve with Compression Ring for Telescope. Color: Black, Condition: New. Listed at 12.59 USD. 2''(M42 Thread) to 1.25'' Adapter Sleeve with Compression Ring for Telescope Description: Allows you to use 1.25" eyepieces in any 2" telescopes focuser, star diagonal, or holderAn affordable way to increase the number of eyepieces to use with your 2" focuser-equipped telescopeIdeal for using high-power, low focal length 1.25" eyepieces in a big 2" telescope focuserGreat for performing lunar and planetary viewing in larger telescopesFeatures a durable, anodized black aluminum housingThe adapter offers an ultra-secure threaded connection to your telescope. On the other side, a compression ring provides a strong grip on eyepieces accessories without scratching or denting their barrels. To tighten the ring around the accessory, just adjust the set screw.With its precision machined aluminum construction and black anodized finish, this adapter will resist corrosion and wear, providing you with years of use. The black interior also reduces the internal light reflections, enhancing your view. Package Include:1 x M42 Thread Telescope Eyepiece Adapter(2 to 1.25-Inch)