Specification Brand : SKYZHENG BulletPoint1 : 【1】37mm to 49mm Step Up Ring Filter Adapter BulletPoint2 : 【2】Made of high-quality anodized aluminum,the ring has a strict surface treatment to avoid shaking or cross threading, and the ultra-thin design makes it durable and practical. BulletPoint3 : 【3】Compatibility: Compatible with all 37mm camera lenses & 49mm accessories. BulletPoint4 : 【4】How do I find my filter thread size? Your lens thread size will be printed underneath your lens cap or written somewhere on the lens barrel. Please do make sure to order the correct size otherwise it will not fit on your camera lens. BulletPoint5 : 【5】30-day quality assurance, worry-free returns and exchanges, please contact us if you have any questions! Color : 37mm to 49mm ExternallyAssignedProductIdentifier1 : 724723185638 ExternallyAssignedProductIdentifier2 : 0724723185638 IncludedComponents : No components ItemName : 37mm to 49mm Step up Ring Filter Adapter Metal Ring Step up Rings Adapter Filter Compatible with All 49mm UV,CPL,ND,Lens Hood,Threaded Lens ect (37mm to 49mm) ItemPackageDimensions_Height : 0.39 inches ItemPackageDimensions_Length : 3.14 inches ItemPackageDimensions_Width : 3.14 inches ItemPackageQuantity : 1 ItemTypeKeyword : camera-lens-filter-step-down-rings Manufacturer : SKYZHENG ModelNumber : SKY240109 NumberOfItems : 1 PartNumber : SKY240109 ProductDescription : Step-Down Ring Step-up Ring Filter Adapter ,for All Brands UV ND CPL, Metal Ring ProductSiteLaunchDate : 2024-01-10T00:40:29.790Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 WarrantyDescription : 30 day refundable and exchangeable