Specification Brand : Yadsux BulletPoint1 : Precision five-axis machining center, high-quality aviation aluminum alloy material, one-time processing completed. BulletPoint2 : The shape has been redesigned, inspired by user feedback, more practical, attractive and trendy. BulletPoint3 : Compared with the first generation of products, the thickness increased by 0.5 mm, so that the filter ring is more robust and durable, not easy to deformation. BulletPoint4 : Please confirm the size when purchasing, for example: 77mm to 72mm step down ring, 77mm refers to the lens size, 72mm refers to the filter size. It is compatible with all 77mm lenses and 72mm filters. BulletPoint5 : We offer a one-year warranty to bring more fun to your professional shooting. ExternallyAssignedProductIdentifier1 : 0732214433984 ExternallyAssignedProductIdentifier2 : 732214433984 ItemName : 77mm to 72mm Step Down Ring Filter Adapter,72 Size Models ItemPackageDimensions_Height : 8.509 centimeters ItemPackageDimensions_Length : 0.889 centimeters ItemPackageDimensions_Width : 8.4074 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-filter-step-up-rings Manufacturer : Yadsux ModelNumber : RJH-2 PartNumber : RJH-2 ProductDescription : Our filter adapter rings allow you to fit different size filters on the same size lens, and also allow the same size filter to fit on different size lenses, saving you money and space When buying, please check lens size and filter size! Buy the right model!