1Three Spirit Level Designs: Multi directional adjustment and observation of level. 2Aluminum Alloy Material: CNC tight processing, surface anodic oxidation treatment, strong and durable, anti corrosion. 3Adjusting Angle: All three locking ring can be adjusted horizontally, with 5 horizontal adjustment range. 4Three Adjustment Dials: Enable the operator to make fine adjustments, allowing you to easily adjust the level even in complex terrain. 53/8in Screws at Both Ends: 3/8in screws at the bottom, suitable for most tripods. There are also 3/8in screws on the top, which can be used for all kinds of SLR ball head. Item Type: Leveling Base Color: Black Material: Aluminum Alloy Weight: Approx.259g/9.1oz Interface: 3/8in Screw, 3/8in Screw Hole Maximum Load: 15 Kg/33.1lb Adjustment Angle: 5 Horizontal Adjustment 1 x Leveling Base