Product Features: Odorless Air Tight Seal Water Resistant Creates a Vacuum Seal Modern Design Keeps Blends Ultra Fresh Strong and Durable Available in Clear, Solid or Tint The TightVac Container employs a patented open & close system which allows Aromatherapy Blends to stay ultra fresh for long periods of time. These are the perfect Storage containers! Odorless, Air Tight and Super Water Resistant. It sucks out the air as the cap is pushed down, creating a vacuum seal. It features a super cool modern design and keeps blends ultra fresh. Extremely strong and durable. Just push the button down and pull off...that easy!