High-Quality Material: This quick-release clamp is made from premium aluminum alloy with a high-strength anodized finish, ensuring strength and durability. It easily attaches to ball heads, brackets, tripods, and other camera accessories. Direct Mounting: The adapter plate mounts via a 3/8" threaded hole for direct attachment to a tripod/monopod and includes a 1/4" female adapter. The groove on the base mount is designed to fit Arca standard 33-38mm. Level and Scale: Two built-in spirit levels provide vertical or horizontal orientation control, aiding in more precise camera positioning. Features a clearly laser-etched scale on both sides for easier shooting and better photographic results. Easy to Use: The knob design simplifies operation, allowing you to adjust the quick-release block's width as needed for ball head mounts, brackets, tripods, and other accessories. Safety U-shaped grooves effectively prevent accidental camera drops when mounting the quick-release plate. Wide Application: The universal quick-release clamp for Arca Swiss Standard is suitable for tripod ball heads, universal quick-release brackets, monopod heads, tripod quick-release plates, etc. It's compatible with Arca-Swiss quick-release plates, enabling professional and casual photography with ease. Note: All data is measured manually. Please allow for 1-3 cm error. Due to differences in light and display, there will be some color difference. The actual product received shall prevail.