RAM 3" Max Width Clamp Base with D Size 2.25" Diameter Ball - RAM-D-247U-3

The RAM-D-247U-3 consists of a 3" clamp base with 2.25" ball. Specs & Features Material:Powder Coated Marine Grade Aluminum Ball Size: 2.25" Rubber Ball "D" Size Note:The "U" in the part number reflects product packaged in poly bag. Weight:1.15 lbs. Compatible With Compatible Arms and Mounts RAM Medium Length Double Socket Arm for D Size 2.25" Balls - RAM-D-201U RAM Double Socket Arm With Jam Nut For D Size 2.25" Balls - RAM-D-201U-MI1 RAM Short Length Double Socket Arm for D Size 2.25" Balls - RAM-D-201U-C RAM Short Double Socket Arm With Jam Nut For D Size 2.25" Balls - RAM-D-201U-C-MI1 RAM Long Length Double Socket Arm For D Size 2.25" Balls - RAM-D-201U-E RAM Double Socket Arm With RAM® Pin-Lock™ Security Nut And Key Knob For D Size 2.25" Balls - RAM-D-201-SU RAM HORZ. SWING ARM SYSTEM W/O BALL BASE - RAM-D-162H-MC3 RAM Vertical Mounting Base With Single Socket D Size 2.25" Swing Arm - RAM-D-162V-MC3 RAM Horizontal Mounting Base With Single Swing Arm And D Size 2.25" Ball Socket - RAM-D-109HS-4U