Silca always considers sustainability, which is why it repurposes Italian leather from the fashion industry to make its seals. The Silca straws have a similar story. When producing the Sicuro Titanium cage, Silca discovered that it could create 6 bottle cages from one tube, leaving behind approximately 8.5 inches of scrap tubing. Instead of wasting this material, Silca turned it into a titanium straw, resulting in a material utilization rate of 99.9%. By using these straws, you also contribute to reducing the use of single-use plastic straws. This set includes two straws for a double win.Key features:- 6.35mm Diameter 3/2.5 Titanium tubing- One straight 8.5 and one bent 8.5 Titanium Straw engraved with the Silca logo- Dishwasher Safe- Avoid using abrasive cleaning pads- Straws are ultrasonically cleaned in our factory, but please wash them before use- Rainbow anodize is done completely by hand through a manual process that involves altering the voltage while raising and lowering the straw. As a result, each straw is unique and may differ slightly from the photos.