This accessory doubles your battery...
for Camera Tripod Studio Flash Light Stand Boom
L-shaped Vertical Shoot QR Plate Special for Nikon D800/D800E/D810 with Battery Grip
All-metal Multipurpose Improved Fluid Panoramic Head IS-QJ58Compatible with RRS, Arca-Swiss Ball Head & Quick Release Plate
Lens Tripod Mount Ring for Nikon AF 80-400mm f/4.5-5.6D ED VR and Nikon AF-S 300mm f/4D IF-ED
Lens Support Collar Tripod Mount Ring for Nikon AF-S 80-400mm f/4.5-5.6G ED VR N
Lens Support Collar Tripod Mount Ring for Sony 70-400mm F4-5.6 G SSM (SAL70400G) and 70-400mm F4-5.6 G SSM II (SAL70400G2)
Hexagonal wrench made of stainless steel IS-AK M3/M4/M5 and straight slot screwdriver.
iShoot Front Lens Sleeve/Cover/Protector for Nikon lens
iShoot Front Lens Sleeve/Cover/Protector for Sony lens
4-way Focusing rail for Macro-photography
All-metal 2D 360° Panning Head IS-6458QJ