Package includes:
<br />1 x 49mm-52mm Step-up ring 
<br />1 x 52mm-55mm Step-up ring 
<br />1 x 55mm-58mm Step-up ring 
<br />1 x 58mm-62mm Step-up ring 
<br />1 x 62mm-67mm Step-up ring
<br />1 x 67mm-72mm Step-up ring 
<br />1 x 72mm-77mm Step-up ring 
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<br />Description:
<br />Special aviation aluminum alloy, high strength, impact resistance, twist and pressure. Machining process.
<br />Surface treatment: high-mesh sand blasting machine and color quality pure matte black. Ultra-low chemical residues, attached to a solid!
<br />Font Handling: Font clear mission, silk screening of non-mimeo, attached to a solid!
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<br />Step up rings, also known as adaptor rings, allow you to use filters and accessories that are not the same size as your cameras lens. Lenses and filters come in a large range of types and sizes and unfortunately they don't always fit together correctly. Fortunately there is a step up or step down filter for just about any need.
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<br />How step up rings work
<br />Step up rings provide a way to fit a larger diameter filter or accessory onto a smaller lens. The step up rings screws onto your lenses threading and provided a larger thread with with you can then attach other elements included more step up rings.