Low-density Polyethylene tubing is a great economical choice that offers the most value for most general applications. The tubing is lightweight, flexible, and non-toxic. SpecificationsMaterial: Low Density Polyethylene / LDPEColor: NaturalInside Diameter: .25" or 1/4"Outside Diameter: .375" or 3/8"Wall Thickness: .062"Max Pressure: 214 PSI at 72°FTemp Range: -93°F - 184°FHardness, Shore D: 50Tensile Strength: 1700 PSI