Convert the thread size of your lens to the thread size of any other accessory (such as filters, hoods, flashes and lens converters). Fit any lens with the same filter thread; manual or autofocus, digital or film. Anodized matte finish to compliment your camera. Made from premium-grade aluminum. The Stepping Adapter Ring Kit includes: 10 Pieces Step-up Adapter Ring Set (26-30mm, 30-37mm, 37-43mm, 43-52mm, 52-55mm, 55-62mm, 62-67mm, 67-72mm, 72-77mm, 77-82mm) + 10 Pieces Step-down Adapter Ring Set (82-77mm, 77-72mm, 72-67mm, 67-62mm, 62-55mm, 55-52mm, 52-43mm, 43-37mm, 37-30mm, 30-26mm).Manufacturer: Neewer. Date First Available: April 30, 2015. Is Discontinued By Manufacturer: No. Best Sellers Rank: #17 in Camera Flash Adapter Rings. Customer Reviews: 4.4 out of 5 stars 909 ratings 4.4 out of 5 stars. Item model number: 90084559. : B00WW31A3E. Item Weight: 4.9 ounces. Product Dimensions: 6.5 x 4.72 x 3.15 inches.