Specification Brand : FOTGA BulletPoint : Tamron Tripod Mount Ring for 100-400mm Di USD Lenses BulletPoint1 : It features arca swiss bottom plate for attaching your lens to Ball Head, Clamp or Panorama Head of Arca-Swiss standard.There are also 3/8″-16 and 1/4″-20 holes at the bottom for attaching on tripod,light stand,etc. BulletPoint2 : This tripod mount ring helps fix and balance your tele lens which is heavy or long lens hanging off the front of camera. BulletPoint3 : Suitable for Canon RF 100-500mm F4.5-7.1 L is USM Lens. BulletPoint4 : Made of aluminum alloy.Ring dia is 80mm/3.15in,weighs 163g/0.36lb. BulletPoint5 : Package includes: 1 x Lens tripod mount ring Color : Manfrotto Fluid Video Head Standard ExternallyAssignedProductIdentifier1 : 725211035053 ExternallyAssignedProductIdentifier2 : 0725211035053 GpsrSafetyAttestation : 1 IncludedComponents : tripod mount ring ItemName : FOTGA Lens Tripod Mount Ring Collar Ring for Canon RF 100-500mm F4.5-7.1 L is USM Lens,Buit-in Arca Swiss Tripod Mount Base Plate Stand ItemPackageDimensions_Height : 3.7 inches ItemPackageDimensions_Length : 7 inches ItemPackageDimensions_Width : 4.48 inches ItemPackageQuantity : 1 ItemTypeKeyword : tripod-lens-mount-rings Manufacturer : Fotga MaxFocalLength : 400 millimeters ModelNumber : LF-MS468C NumberOfItems : 1 PartNumber : RJ052 ProductDescription : FOTGA Lens Tripod Mount Ring Collar Ring for Canon RF 100-500mm F4.5-7.1 L is USM Lens,Buit-in Arca Swiss Tripod Mount Base Plate Stand ProductSiteLaunchDate : 2024-06-21T07:23:15.618Z Size : for Canon RF 100-500mm F4.5-7.1 L is USM SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 45121600 WarrantyDescription : 3 months