XCSOURCE 49 52 55 58 62 67 72 77 mm Step up Filter Ring Stepping Adapter (Set of 7 Pieces) Size name:filter kit 5   Product Description : Special aviation aluminum alloy, high strength, impact resistance, twist and pressure. Machining process. Surface treatment: high-mesh sand blasting machine and color quality pure matte black or silver. Ultra-low chemical residues, attached to a solid! Font Handling: Font clear mission, silk screening of non-mimeo, attached to a solid! Package Included: 49mm-52mm  Step-up ring x 1 52mm-55mm  Step-up ring x 1 55mm-58mm  Step-up ring x 1 58MM-62mm  Step-up ring x 1 62mm-67mm  Step-up ring x 1 67mm-72mm  Step-up ring x 1 72mm-77mm  Step-up ring x 1