Material and protection - Built from double-layered silver-coated 420D Oxford fabric, this dust cover is thickened to provide effective protection against dew, sun, and dust. It helps keep your telescope clean and supports durable performance during use. Fit and compatibility - Size 150 to 85 cm and designed to fit seamlessly on forwatcher and forMeade astronomical telescopes, offering comprehensive coverage for your equipment. Secure attachment - Equipped with a secure mounting strap to prevent the cover from being blown away by wind and to keep it in place for reliable protection. Dust proof and thermal insulation - The silver color and the 420D Oxford fabric help minimize dust accumulation and keep the telescope clean. It also provides thermal insulation to help prevent overheating of the telescope interior. Use scenarios - Outdoor observing in dew-prone environments: protects optics from dew and dust while you observe. - Transit and field use: shields the telescope from dust and weather during transport between sites. - Storage or camping setups: provides ongoing protection from sun, dust, and heat in various environments. Compatibility notes - Specifically designed to fit forwatcher and forMeade astronomical telescopes with the indicated size range, ensuring reliable coverage and protection.