This is a 100-foot-long tubing made of clear PVC (polyvinyl chloride), with an outer diameter of 1/2 inch and an inner diameter of 3/8 inch. It has a working pressure of 40 pounds per square inch (psi) at 70 degrees Fahrenheit (21 degrees Celsius). Clear PVC tubing is often used in applications where visual monitoring of fluids or gases is required. It is also known for its durability, flexibility, and resistance to corrosion and abrasion. This tubing can be used for various applications such as fluid transfer, chemical dispensing, laboratory equipment, and more.