ToolPro's 4 in. Ceiling Grid Spring Clamps features protective rubber tips that prevent scratches or marring on painted surfaces, making them suitable for both professional ceiling installs and general use around the workshop or home. With a maximum 1 in. jaw opening, they offer just the right amount of tension for temporary holding tasks. Lightweight yet rugged, these versatile clamps are a valuable addition to any toolkit and are sold in packs for convenience. Perfect for ceiling projects and multipurpose clamping needs.