This product contains 1 set of 12 tube brushes with varying diameters. The diameters for these 12 brushes are 2, 3, 4, 5, 6, 8, 12, 16, 20, 24, 32, and 38 mm (1/16, 1/9, 1/6, 1/5, 1/4, 1/3, 1/2, 2/3, 3/4, 1, 1 1/4, 1 1/3 in). All brushes are 8 inches long, tipped with an epoxy resin to prevent scratching, and constructed with stainless steel and nylon bristles. Each set of 12 brushes comes with a detachable carabiner for quick and easy access. All brushes have a convenient loop at the end of the handle to hang when not in use or to reattach to the key ring for safe keeping

Common Uses...
Airbrushes
Bottles
Carburetor Passages
Cell Phones
Colanders
Dishes
Drinking Straws
Drip Tips
Espresso Machines
Eye Glasses
Glass Droppers and Dropper Bottles
Guns
Hummingbird Feeders
Jewelry
Keyboards
Paint Spray Guns
Pipes
Pressure Cookers
Sewing Machines
Sippy Cups
Small Nozzles
Tattoo Equipment
Thermal Coffee Tops
Tubes
Vaporizers
Water Pumps