WonderRig Ultra by Fotodiox, Premium Grade Professional Video Rig, Shoulder Support Stabilizer, with Follow Focus, Matte Box and Filter Holders, Lens Support and Shoulder Accessory Support Pad, Expandable 15mm Rod System for DSLRs, Mirrorless Cameras and Height-adjustable upgraded matte box with top flag, two side-flags and rubber lens collar; One stationary 4x4 filter holder and one rotating 4x4 filter holder built into the matte box Adjustable, reversable follow focus dial with two stop adjustable stop points; 15mm industry standard rail system mountable from both sides Dual hand grips and top grip, adjustable in multiple directions with Hirth couplings to hold in place; Transform your DSLR camera into a professional HD camcorder works with most DSLR and video cameras Industry standard accessory port in focus wheel and universal 1/4-20 base plate mount - Allows for a wide range of whips, speed cranks, stands and other accessories 24-Month Manufacturer Warranty