Twisty Replacement Pack: 2x O-Ring + 2x Micro Brush + 2x Glass Tubes w/ Caps Go to amazon.com Related posts Top 9 glass blunt Feature2 Glass Tubes, 2 O Rings, 2 Micro Brushes, 1 Case Pouch DescriptionThis product includes: 2 Glass Tubes 2 O Ring for a tight seal 2 Micro brushes for cleaning 1 Pouch for storage