2 pcs Step Up Adapter Ring:1pcs 40.5mm-49mm & 1pcs 46mm-49mm,Weight : 7g & 5g Adapter ring is suitable for filters, close-up lenses and other attachments to lenses with different filter thread sizes. The 40.5-49mm Step-Up Adapter Ring easily screws onto the front of any 40.5mm Lens, and allows you to convert to the 49mm threads of accessory items (such as filters, hoods, flashes and lens converters). The 46mm-49mm ring adapter easily screws onto the front of any 46mm lens, and converts the thread size of your lens to the thread size of any other 49mm accessory (such as filters, hoods, flashes and lens converters). Product Name : Step Up Adapter Ring Weight : 7g & 5g Color : Black Material : Metal Lens Side : 46mm / 1.8 inch & 40.5mm/1.59 inch Filter Side : 49mm / 1.9 inch Total Size : 51 x 7mm / 2.0 inch x 0.28 inch & 52 x 6mm/2 inchx 0.24 inch (D*T) Package Content : 2 * Step Up Adapter Ring Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.