OP/TECH USA Lens Sleeve - 4-Inch Neoprene sleeve provides great protection for lenses Can be combined with any size Hood Hat (sold separately) for a truly customized system Provides quick and easy access Approx. 4" Long (10,2cm), Diameter tapers from 3" (open end) to 2.6" (closed end) (7,6cm6,6cm) Made in the USA