Adaptable straws are reusable. These versatile drinking straws are available in large and small Plexiglas, and flexible polyethylene. All straws measure 460mm (18""). The small straw has a 32mm ( 1/8"") hole and the large straw has a 64mm ( 1/4"") hole. The Plexiglas can be adjusted to any angle using a heat gun. The flexible straws have a 4.95mm (3/16"") hole and can be shaped easily by hand.