MILITARIA Gas Tube Pipe Cleaners, 16-inches Long, 50 Pack Includes: 50 gas tube pipe cleaners.Great Pipeline Cleaning Cleaning Pipe, Flexible, Robust, Reliable in Quantity and Length, Clean up All Small Pipes and Corners. Specs: wire core, highly absorbent cotton bristle carriers. 16" long (40.6cm), 1/8" (3.2mm) diameter.