The Leofoto LH-LR Series Ball Head is an excellent support solution for robust rifle use. Ideal for various shooting applications, it provides fast and precise control, ensuring solid support for your rifle. Achieving aiming and horizon leveling is seamlessly executed in a single intuitive motion, and securing a rigid lockup is as simple as a quick twist of one control. With a smaller profile and absence of protruding handles, these ball heads are easy to carry and pack. The head features a single ball locking knob while the panning base has a separate lock and is laser-engraved in 2.5-degree increments from 0-360 degrees for accurate repeatability. What differentiates the LH-LR is the lever release clamp which allows quick attach and de-attach versus a knob clamp that allows for maximum clamping force. Panning base is laser-engraved at 2.5-degree intervals, zero to 360-degrees Low profile keeps the camera closer to the tripod apex for more stability Split body design for superior lock up Knob and lever are captive and uniquely shaped Spring-loaded lock knob can be repositioned CNC machined, hard anodized aluminum for optimal strength and durability Ergonomic design gives superior handling and unsurpassed reliability 3/8" Mounting Socket Model Ball Diameter Panning Base Diameter Height Mounting Hole Max Load Weight Clamp Size LH-40LR 40mm / 1.57in 57mm / 2.24in 91mm / 3.58in UNC3/8"-16 20kg / 44.09lb 530g / 1.16lb LR-50 50mm LH-47LR 47mm / 1.85in 62mm / 2.44in 98mm / 3.85in UNC3/8"-16 22kg / 48.50lb 630g / 1.38lb LR-60 60mm LH-55LR 55mm / 2.16in 72mm / 2.83in 98mm / 3.85in UNC3/8"-16 25kg / 55.11lb 840g / 1.84lb LR-70 70mm