Eighteen inch flexible polyethylene or rigid plexiglas.

Eighteen-inch Reusable Drinking Straws come in two varieties: flexible polyethylene and rigid Plexiglas®.

The Clear Rigid Plexiglas Re-Usable Straws are eighteen inches long and can be heated with a heat gun to reshape as desired. The large 1/4 inch diameter straw can be used for soups.

Re-usable flexible polyethylene drinking straws are eighteen inches long and have a 3/16 inch diameter hole.

White flexible polyethylene, 3/16 inch diameter opening, package of 10 #CSP1133.
Clear rigid Plexiglas, 1/4 inch diameter opening, package of 5 #CSP1136.