Features: 3 Fine tuning knobs enable to adjustment up to +/- 5 degrees in horizontal, non-slip wear-resistant rubber pad and the locking ring designed dials ensure the camera perfectly leveled for stable photography. Standard 3/8" top external stud and 3/8" bottom screw thread, which is for different types of tripods. Exquisite workmanship, aluminum alloy material made, CNC precision processing, surface oxidation treatment, durable for long service life. Large load capacity but lightweight in design, portable to carry, perfect for outdoor travelling photographers. Professional photography accessories, widely used for precise leveling in portrait video shooting. Specifications: Material: Aluminum Alloy Size: Approx. 67x46 mm/2.64x1.for 81 inches Adjusting Angle: +/- 5 Degree Max. Load: 15kg/33Lbs Screw: 3/8" Male Top Stud and 3/8" Female Bottom Socket Package Includes: 1 Piece Leveling Base note: Please allow 1-2cm errors due to manual measurement, pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.