Material: The hydration bladder brush cleaning kits are made of stainless steel and nylon material, which make them durable and sturdy for long time use. The bladder will not rust and ensure a long term use of the brush cleaning kit. This cleaning kit is a true fit for any outdoor activity. Package: You will receive 1 flexible snake brush, 1 smaller brush, 1 bigger brush and 1 collapsible frame. These cleaning kits are universal for most hydration reservoir cleaning Great For Cleaning: small bladder brush is wonderful for mouthpiece cleaning; Water bladder cleaning kit is specially designed for beverage hose cleaning; Its long shape realizes the flexible function, effectively cleans the dirt inside the hose; Features different types of brush cleaning kit, you can use these optional brushes to clean most of the areas you want Functions: The cleaning brush kit can be used to clean your hydrated bladder, water storage tank or water bottle effectively. The brush cleaning kit help cleans your equipment with regular dish soap thoroughly without causing damage. Foldable Support Frame: The foldable support frame is designed for bladder brushes fast drying. The brushes are suitable for any brand bladder with maximum mouth opening 4.7 and minimum mouth opening 1.6.