["Description:\nbrand new and high quality.\nFeature:\nMade of high-quality aluminum alloy and rubber material, durable and firm, shockproof and stable, \nSmall shape and compact size, it is easy and convenient for us to take and carry.\nSuitable for outdoor activities, travelling and so on.\nEasy and convenient for us to install and remove.\nIt is suitable for Zumo 400/450/500/550/660, for Rider 2/for Urban Rider GPS Navigation Holder, for motorcycle or bicycle holder.\nSquare Mounting Base with Ball for Head only, other accessories demo in the picture is not included!\n\nSpecifications:\nItem Type: Square Mounting Base\nMaterial: Aluminum Alloy+Rubber\nSize: 50x42mm/1.9x1.6in\nColor: Black\nQuantity: 1 Pc\n\nNote:\nNo retail package.\nTransition: 1cm=10mm=0.39inch\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n1 x Square Mounting Base with Ball for Head"]