SMALLRIG 2991 BATTERY PLATE V-MOUNT W ADJ ARMUtilizing a standard V mount battery and fits most V mount batteries, to provide greater battery life for your camera rig with your battery's power port(s). ###split### It comes with a dual 15mm rod clamp with an adjustable arm to help mount the plate to your 15mm LWS rod system and adjust the V mount battery's position as needed in a variety of different installation ways. The plate itself features multiple 1 4 20" countersinks, M3 countersinks, M4