Adaptable straws are reusable. These versatile drinking straws are available in large & small plexiglas, & flexible polyethylene. All straws measure 460 mm. (18\""). The small straw has a 3.2 mm. (1/8\"""") hole & the large straw has a 6.4 mm. (1/4\"""") hole. The plexiglas can be adjusted to any angle using a heat gun. The flexible straws have a 4.95 mm. (3/16\"""") hole & can be shaped easily by h&. "