The Jones Stephens Self-Seal Black Rubber Pipe Insulation Tube measures 402 feet in length with a 1/2 inch inner diameter and 3/8 inch wall thickness. This insulation is designed to provide thermal protection for pipes, effectively reducing energy loss and preventing condensation. Made from high-quality rubber, it offers excellent durability and moisture resistance. The self-sealing feature simplifies installation, allowing for quick application over existing pipes without additional adhesives. This insulation meets industry standards for performance and safety, making it ideal for both residential and commercial use.