18pcs Step Up Down Lens Filter Ring Adapter Set 37-82mm 82-37mm for Description: Allow you to use lens filters and accessories that are not the same size as your camera lens lenses and filters come in different size and models, they do not always fit together correctly, but this step up and step down filter will solve this matter step-up ring: Provide a way to fit larger diameter filters or accessories onto a smaller lens step-down ring: Provide a way to attach smaller filters or accessories to a larger lenses Specification: Material : Aluminum Alloy Color: Black 9 pieces of step-up rings ( 37-49mm 49-52mm 52-55mm 55-58mm 58-62mm 62-67mm 67-72mm 72-77mm 77-82mm ) 9 pieces of step-down rings ( 82-77mm 77-72mm 72-67mm 67-62mm 62-58mm 58-55mm 55-52mm 52-49mm 49-37mm ) Package includes: 18 x Ring Adapter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.