Sioux Chief 1 lb. Brown Oakum Oil-Treated Jute is used for sealing pipes, driveways, and caulking windows. It is ideal for packing spigot type cast-iron pipes, expanding when wet for a secure seal. With an average length of 10 to 14 inches, this random cut oakum is suitable for various plumbing tasks, log cabin caulking, insulating door frames, and highway joint packing. It is non-irritating to the skin and does not split, making it safe and easy to handle.