Description This is a laboratory tubing clip clamp, made of durable metal material, can be used for a long term. Great for chemical laboratory and school biological experiments. It has a reasonable design and is easy to use. Features -Color:Silver. -Material:Metal. -Size: About3.50X2.60X1.00cm/1.38X1.02X0.39in. - It has superior technology, perfect details and not easily deformed sturdy. It can meet your daily demands. -Designed with a screw compressor to adjust the flow amount of liquid in hose. -Ergonomic knob of the tubing clip offers easier clamping and reduced hand fatigue. -Simple to use, compact design, easy to carry, can be placed in your pocket, take it wherever you want. -It is made of carefully selected durable metal materials and has a long service life.Package list: 10 x Tubing Clips