These brushes are designed for styling, drying, and creating volume, polished waves, and sleek styles. The brushes feature a ceramic barrel with nylon bristles that are heat-resistant and help to reduce frizz and static electricity. They are designed with a non-slip, ergonomic handle for better control and are suitable for all hair types. The brushes utilize far infrared technology and negative ions to provide constant, even heat, which can lead to faster drying times. Brushes included: CB25: This is a mini or micro curl brush, with a barrel size of approximately 1/4". It is also referred to as a mini brush. CB01: This is a small hairbrush with a barrel size of approximately 1-inch. CB02: CHI Turbo CB02: This is a medium-sized brush, with a barrel size of approximately 1-1/4 inches. It is also described as being a medium-sized 40mm brush. CB03: This is a large-sized brush, with a barrel size of approximately 1-1/2 inches. CB04: This is a jumbo round brush, with a barrel size of approximately 2 inches. Please note: Brushes have writing on top and bottom from previous owner. There is some signs of wear on the smaller brush. See images for details. Otherwise in clean and good condition!