Specification Brand : Manfrotto BulletPoint : ProMaster Studio Boom Stand - Black BulletPoint1 : New BulletPoint2 : 22mm Hole Attachement Type BulletPoint3 : Grey BulletPoint4 : STRONG GRIP. Sturdy lock system for safety and stability. Durable solid metal. The swivel head has a good grip to keep everything in place. BulletPoint5 : PACKAGE INCLUDES. Grip head only. Other accessories and equipment depicted in the images are not included. The swivel head for a C stand allows the arm to spin 360°. Color : Black CompatibleDevices : Camera CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 4713694752228 ExternallyAssignedProductIdentifier1 : 8024221016352 ExternallyAssignedProductIdentifier2 : 08024221016352 HardwareInterface : usb Hazmat : 3 IncludedComponents : DVD IncludedComponents1 : Light Stand IncludedComponents2 : Reflector ItemName : Manfrotto 109 Caster Set for 3070 / 3071 / 3371 ItemPackageDimensions_Height : 8.2 centimeters ItemPackageDimensions_Length : 26.4 centimeters ItemPackageDimensions_Width : 19.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : photographic-lighting-booms-and-stands Manufacturer : Manfrotto Material : Rubber Material1 : Rubber Material2 : Metal MaximumHeight : 165 centimeters MinimumHeight : 26 centimeters ModelName : 322235 ModelNumber : 109 MountingType : Stem Mount NumberOfItems : 1 PartNumber : 109 ProductDescription : Wheel:80mm without brakes, with adapter for legs : 22mm. Set of three. ProductSiteLaunchDate : 2003-06-17T00:00:00-00:00 Size : 80mm StreetDate : 2011-01-24T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 3 Voltage : 0.01 volts WarrantyDescription : 1 WaterResistanceLevel : not_water_resistant