Orion 15188 Scope Cloak - Refractor Reflector and SCTs Scope Cloak protects your telescope when it's idle, shielding it from the elements Between viewing sessions, Scope Cloak will keep your instrument clean and dry The Orion Scope Cloak is made from heavy-duty reflective, tear-resistant fabric with a waterproof lining Fits mounted reflector telescopes up to 6" in aperture, short refractors up to 120mm (4.7"), and Schmidt-Cassegrains up to 11" Includes a handy carrying pouch for convenient storage when not in-use