Photography C Clamp Aluminium Alloy Desktop Mount Holder C Clamp with 1/4in and 3/8in Thread Hole for Table1Maximum Clamping Capability: C clamp is used for clamping desk, lamp stand and other objects with thickness less than 45 mm and extension length more than 3CM, which is convenient to fix to various positions. 2Universal Interfaces: The C Clamp has 1/4in and 3/8in thread holes, offering versatility and compatibility with various equipment. 3Durable Construction: Made of haluminum alloy, this mounting bracket is built to last. The durable construction ensures long lasting performance. 4Anti Slip Pad: Universal C clamp adopts new anti slip rubber pad, wear resistant, providing more stable clamping, avoid damage and scratch to the desktop. 5Portable: The C clip is small and easy to carry, and the groove design can also facilitate the clamping of pipes, tripods and other cylinders.