Telescope Focusing Mask Acrylic Deep Space Fishbone Plate Astronomical Telescope Accessories for Reflector Refractor

Feature: 1. Premium Material: Made of premium acrylic, the telescope focusing mask is sturdy and durable, reliable, and has a long service life. 2. Suitable: The telescope fishbone plate is suitable different telescopes, such as reflector, refractor, for Dobsonians, for Mak Cas, for SCT, you just need to measure the size of telescope tubes. 3. 3 Screw Sleeve: The 3 screw sleeve with anti skid silicone cover are used to fix the telescope, prevent slippage while keeping the tubes perfectly centered. 4. Convenient: The focusing fishbone plate overcomes the visual condition, can fast and easily provide perfect focus for your telescopes. 5. Lightweight: The acrylic telescope focusing mask is light in weight, will not damage the balance of telescope, and ensure it will be centered when installing. Specification: Item Type: Telescope Focusing Mask Material: Acrylic Weight: Approx. 28g 0.99oz Color: As Shown Thickness: Approx. 2mm 0.08in Support Telescope Tubes with an Outer Diameter: Approx. 80 110mm 3.15 4.33in (Manual Measurement, 1 2mm Error May Exist). Package List: 1 x Telescope Focusing Mask3 x Installation Accessories