Protein-Free: Tubing is extensively leached, washed, and surface-treated to remove 99.9% of natural protein, making it ideal for sensitive applications. Natural Rubber Tube.

(3) Sizes: 0.39″x216ft（10mm x 66m）. 5) Colors: Red, Black, Green,Dark Yellow, Blue. The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies.