Features: Ensure precision and safe in your experiment with the our pack of 20pieces Waterproof Clip Screw Compressor Clamp, for providing secure grip and preventing leaks, making it essential tool for laboratory fluid management. Crafted from iron metal, rustproof, break resistant, this adjustable hose clip features screw OR spring mechanism, offering strong clamping strength and ease of use for various tube diameters. Very suitable for physicists, chemists, educators, and students, this lab clamp is great for those who needs convenient equipment for their experimental work and educational demonstrations. Widely applicable in laboratory liquid control, teaching demonstrations, and research project, this versatile clamp ensures easy operat and maintains the integrity of your experiments. Enhancing your laboratory efficiency with this water hose clamp, must have addition for any laboratory setting requiring precisely fluid control and management. Specifications: Color: Silver Component: Metal Screw Clamp Size: Approx. 5x4.50cm/ Spring Clamp Size: Approx. 3.5x2.6cm/ Weight: Approx. 50g; 140g Package Includes: 10Pieces note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color