uxcell 72mm-52mm 72mm to 52mm Black Step Down Ring Adapter for Camera Product Name : Step Down Adapter Ring;Lens Side : 72mm/ 2.8" Filter Side : 52mm/ 2";Total Size : 75 x 7mm/ 3" x 0.27" (D*T) Material : Metal;Color : Black Weight : 32g Package Content : 1 x Step Down Adapter Ring