Features: 1、High-quality Protective Cover for telescopes: It offers perfect protection for your telescope against dust and moisture. It is an ideal protection if you want to leave it outside for a short term or store it in the cellar or garage. 2、Thermally stable: Silver-coloured coating on the outside - reflects light, thus preventing the telescope inside from heating up. The material retains its protective function even in extreme heat or cold. 3、Waterproof and Washable: The cover is water-repellent - the telescope stays dry even in the rain. 4、Fixing strap for firm closure and to prevent it flying away: The fixing strap at bottom ensures a clean closing and prevents wind entering from bottom. Secure against damage from extreme winds and extremely tear-resistant under correct and moderate use. 5、Matches all telescopes up to 1200mm length and 10" (254 mm) aperture mounted. Diameter at bottom: 37.6". Height of the cover: 70.87" (1800mm), total lenght: 59.1" (1500mm). Practical Tip: The protective cover is not suitable for permanent outdoor use. It is not a replacement for a shelter, but meant for short-term protection of the telescope before or after an observation. Before pulling the cover over your telescope, put an old linen sheet over the telescope. That will absorb the condensate water which will inevitably form under the cover, thus preventing from unaesthetic condensation marks on the telescope