What is this?The foam tube you received is suitable as a buffer and shock-proof protection cotton tube, which is widely used to protect furniture, pipelines, sports equipment, protection of building materials such as reinforcement, shatterproof packaging for handicrafts, etc. It can also be used on heat pipes or cold pipes to prevent heat from rising or falling.What will I get?Package Content: 4pcs x Foam Protective Tube; Length: 1000mm/3.28ft; Inner Diameter: 10 mm / 0.4 inch; Outer Diameter: 20 mm / 0.8 inch; Shape: White Cylindrical Hollow Tubing; Tube Design: Split OpeningAre there any advantages of the product?Polyethylene foamed cotton tubing, which is a new type of packaging material. It has the feature of shock-absorbing packaging, , anti-collision protection, moisture-proof insulation.