RAM 4.75" Square VESA Plate with D Size 2.25" Ball & Steel Reinforcement - RAM-D-246U-IN1

The RAM-D-246U-IN1 consists of a 2.25" rubber ball, connected to a 4.75" square plate with 4x100mm holes and 4x75mm holes in each corner. 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:0.91 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