2 x Step Up Adapter Ring: 1*a + 1*b
Product Name : Step Up Adapter Ring;Material : Metal
Male Thread : 49mm/1.9 inch;72mm/2.83 inch, Female Thread : 77mm/3.03 inch
Size(Approx) : 80 x 5mm/3.1 inchx 0.2 inch(Max.D*H);79 x 7mm/3.11 inchx 0.28 inch(Max.D*H);Color : Black
Weight : 18g.
Adapter ring is suitable for filters, close-up lenses and other attachments to lenses with different filter thread sizes.
The Bower 49-77mm Step-Up Adapter Ring easily screws onto the front of any 49mm Lens, and allows you to convert to the 77mm threads of accessory items (such as filters, hoods, flashes and lens converters).
The Bower 72mm-77mm Step-Up Adapter Ring easily screws onto the front of any 72mm Lens, and allows you to convert to the 77mm threads of accessory items (such as filters, hoods, flashes and lens converters).
Package Content : 2 x Step Up Adapter Ring