Belkin Components XM Dock,For XM Devices,Slide-in Lock,2 Rubber Bases,Black Mount works with Roady, Roady 2 or SKYFi receivers. Custom slide-in lock holds receivers in place with the ability to easily remove the receiver from the mount. Shock-resistant and vibration-resistant. Ratcheting neck design allows for various angles and positions for the receiver. Cable-management clip eliminates loose and messy cables. Package includes one large and one small rubber base, adapter cup for different sized cup holders and user guide.