Features: * Made from non-toxic, odorless, tasteless ingredients that meet FDA requirements * Natural in color, light weight, and resistant to stress cracking, it forms a solid barrier to gases, vapor, and moisture * 100-foot spool * 1/2 in. O.D. x 3/8 in. I.D. What"s In The Box: * Samar 9004P Poly Tubing Spool, 1/2-In. X 100-Ft.