OP/TECH USA exclusive fold-over pouch offers a convenient and easy way to store and protect small lenses, mounts, converters, adaptors and other miscellaneous items. The soft, durable Neoprene construction protects delicate gear against dust, moisture and impact. The unique fold-over closure system has no abrasive hardware and remains attached to the main body at all times so there's no fear of losing it. It is available in several sizes to fit a wide variety of accessories. Choose the one that's best for you! The fold-over pouch is available in the following sizes: 251 - 2. 5" Dia. X 1. 5" L (6, 4cm dia. X 3, 8cm l)253 - 2. 5" Dia. X 3" L (6, 4cm dia. X 7, 6cm l)254 - 2. 5" Dia. X 4. 5" L (6, 4cm dia. X 11, 4cm l)301 - 3" Dia. X 1. 5" L (7, 6cm dia. X 3, 8cm l)303 - 3" Dia. X 3" L (7, 6 cmdia. X 7, 6cm l)304 - 3" Dia. X 4. 5" L (7, 6cm dia. X 11, 4cm l)306 - 3" Dia. X 6" L (7, 6cm dia. X 15, 2cm l)354 - 3. 5" Dia. X 4. 5" L (8, 9cm dia. X 11, 4cm l)356 - 3. 5" Dia. X 6" L (8, 9cm dia. X 15, 2cm l)lens fit range: 251 - 2-2. 5" (50-64Mm) Dia. X 1-2" (25, 4-51mm) tall253 - 2-2. 5" (5-6, 4cm) dia. X 2. 1-3. 5" (5, 3-D, 9cm) tall254 - 2-2. 5" (5-6, 4cm) dia. X 3. 6-5" (9, 1-12, 7cm) tall301 - 2. 6-3" (66-76Mm) Dia. X 1-2" (25, 4-51mm) tall303 - 2. 6-3" (6, 6-7, 6cm) dia. X 2. 1-3. 5" (5, 3-D, 9cm) tall304 - 2. 6-3" (6, 6-7, 6cm) dia. X 3. 6-5" (9, 1-12, 7cm) tall306 - 2. 6-3" (6, 6-7, 6cm) dia. X 5. 1-6. 5" (12, 9-16, 5cm) tall354 - 3. 1-3. 5" (7, 8-8, 9cm) dia. X 3. 6-5" (9, 1-12, 7cm) tall356 - 3. 1-3. 5" (7, 8-8, 9cm) dia. X 5. 1-6. 5" (12, 9-16, 5cm) . Refers to the large diameter dimension of the Len stall refers to the overall length of the lens including the caps