Product Name: Step Up Adapter Ring;Material: MetalMale Thread: 46mm/1.8inch ;Female Thread: 52mm/2inchSize(Approx): 54 x 6mm/2.12inch x 0.24inch (Max.D x H);Weight: 10gColor: BlackAdapter ring is suitable for filters, close-up lenses and other attachments to lenses with different filter thread sizes.The Bower 46-52mm step-up adapter ring attaches easily to the front of any 46mm lens and allows conversion to 52mm threads of accessories (such as filters, hoods, flashes and lens converters).Package Contents:2 x Step Up Adapter RingOnly the above package content, other products are not included.Note: Light reflection 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.