This professional handlebar attachment will allow you to attach Ultimateaddons® holders, waterproof cases and other 3 Prong device holders. Easy to install and fit to handlebars with approximage diameters ranging from approximately 19- 33mm. Overview This professional vehicle attachment will allow you to attach Ultimateaddons® dedicated holders, waterproof cases and other device holders to your vehicle. On the top of the attachment is an adjustable ball with 3 prong plate with 2 push locking buttons, this can be adjusted 360° and also tilted to give you a better viewing angle. This attachment will attach to your vehicle handlebars securely and can be used on a variety of handle bar diameters ranging from approximately 19-33mm. Please note; this listing is for the holder attachment only and does not include a dedicated holder for your device. These are available to buy separately from our shop or as bundled packages, which can save you a lot of money.