Product description: Mobile phone lens wide-angle macro filter stainless steel filter support adapter ring ,sophisticated material, high intensity, good operation stability. size: 17mm to 37mm 17mm to 52mm 37mm to 52mm 17mm to 58mm 37mm to 58mm Materbrial: Stainless Steel Suitable: > Iphone,Huawei,Xiaomi,Samsang,Canon,EOS R,Nikon,Nikon Z,sony,Fuji,Sigma,Tamron,Camera, Your lens thread size will beprinted underneath your lens cap or written somewhere on the lens barrel. Makesure you order the correct size otherwise it will not fit your lens. Function: Transform caliber adapter ring, can be mounted to the front ofthe lens to achieve different diameter share the same lens diameter filter,lens hood, additional lens and other accessories.