ARKON Replacement Upgrade or Additional Windshield Suction Car Mounting Pedestal for Arkon Dual T Tablet and Smartphone Holders (CM017-KST-2SH) Compatible with Arkon Dual T Slot smartphone and tablet holders Large sized 80mm diameter PVC suction performs well in hot climates Pedestal arm adjusts vertically and provides 360 degree rotation 2 year limited warranty provided by Arkon