BCB-5 Professional Bike Cleaning Brush Set includes five unique cleaning tools purpose-built for scrubbing away dirt and grime with long ergonomic handles for leverage and comfort. The soaping brush bottle brush and straight brush feature bristles made from tampico a natural fiber derived from the agave plant. Tampico is extremely durable resists chemicals and holds moisture well making it an ideal material for cleaning brushes.Soaping Brush - Great for making an initial pass over the bike dispersing soapy water and breaking up large accumulations of debrisTapered Bottle Brush - A general purpose tampico brush for scrubbing areas both big and smallStraight Brush - A long-reach brush with short tight tampico bristles for getting into small nooks and crannies such as suspension pivots saddle rails and other hard to reach areasDrivetrain Brush - Long stiff nylon bristles make this brush ideal for derailleurs cassettes and other areas with grease or dirt build upSoaping Sponge - Useful for applying soap and water as well as cleaning delicate surfaces with a convenient wedge shape