Set of 6: The set of 6 water bottle brushes includes 2 bent brushes, 2 straight brushes, and 2 bent head replacement brushes. This set ensures that every corner of the water bottle, including the mouth and handle, can be cleaned thoroughly. Convenient Size: The bent bottle brush measures approximately 71cm/27.95 inches, with a handle of about 51cm/20.08 inches. The straight bottle brush measures approximately 49.5cm/19.49 inches, with a handle of about 18.5cm/7.28 inches. These sizes ensure that the brushes are easy to use and provide excellent cleaning coverage. Convenient Drying and Storage: The each water bottle brush is designed with a hanging hole, making it easy to store and dry after use. This design ensures that the brush is always within reach and ready to use. Quality Materials: The water bottle brush is made from quality plastic and stainless steel materials, ensuring its durability and safety. It is easy to clean and use, providing you with peace of mind. Long Handle: This water bottle brush is specifically designed for cleaning 5-gallon water bottles, ensuring 360° cleaning coverage. The long handle ensures that you can reach every corner of the bottle, ensuring a thorough clean.