Desk C clamp attachment fits desks up to 45 mm (1.77 inches) thick. If your current clamp cannot fit, you can simply the desk clamp extender instead of buying a lamp. Table C Clamp for desk light is versatile and adaptable for microphone arms, swingarm lamps, lamps, and other compatible devices. Constructed from metal for durability and strength. Built to last and withstand heavy use, while remaining lightweight for easy handling and transport. Antislip clamp design increases friction, helps the clamp grip more tightly, and protects the tabletop from scratches. Use scenarios: Home office or study desk: attach the clamp to the edge of a desk to hold a desk lamp or microphone arm, freeing surface space for writing and accessories. Small studios or tight workspaces: position lighting or a microphone arm precisely where you need it by clamping to the desk edge. Shared or variable desks: quickly move or swap the clamp between desks up to 45 mm thick without sacrificing stability or surface protection.