SmallRig V Mount Battery Plate with Adjustable Arm 2991 utilizing a standard V mount fits most V mount batteries to provide greater battery life for your camera rig with your battery?s power port(s). 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. The plate itself features multiple 1/4-20? countersinks, M3 countersinks, M4 countersinks, 1/4-20? thread holes, M4 thread holes, and an ARRI 3/8? -16 thread hole to attach a dual rod clamp, a magic arm, or other accessories. Two stoppers will prevent the battery from twisting when attached. The plate is also compatible with the Blackmagic URSA mini. Compatibility: The plate fits most V mount batteries but PAGlink series V mount batteries and Patona Premium Battery for BP-190WS. Package Includes: 1 x V Mount Battery Plate 1 x Dual 15mm Rod Clamp with Adjustable Arm 3 x Allen Wrench 2 x 1/4-20? Screw (short) 2 x 1/4-20? Screw (long) 4 x M4 Screw 4 x M3 Screw