Proudly made in the USA with the highest quality materials and sharp craftsmanship. * The Astrozap Dew Shield is an essential telescope accessory for anyone operating a telescope where d * The Astrozap 6" Astro-Tech/GSO RC Dew Shield fits 6" Ritchey-Chretien astrograph telescopes. * Astrozap 6" Astro-Tech/GSO RC Dew Shield is constructed of high quality ABS-grade polymers. * Astrozap 6" Astro-Tech/GSO RC Dew Shield reduces dew buildup on your 6" Ritchey-Chretien astrograph