1Micro Focus: The tube size is 67mm, the focus can be adjusted by gears, the focus length is 120mm, and it is adapted to the 25 inch eyepiece interface. The micro focus is extremely precise even at large magnifications. 2Fixing Screws: The side of the telescope focusing seat is equipped with fixing screws to secure the eyepiece inside and keep it stable for observation. 3Internal Matting: This telescope focusing mount features a fully threaded interior design to minimize reflections. 4Durable Construction: 67mm focusing mount seat is made of premium material, which is hardness, sturdy and durable and has a long service life. 5Easy to Install and Operate: The astronomical telescope focus holder is easy to use for steady focusing of reflecting telescopes.1 x Telescope Focusing Seat