Hair-cutting shears are scissors that are specifically designed for cutting hair. They are also known as barber shears, hairdressing shears, or hair shears. They range in size from about 5 to 7 inches (13 to 18 cm) long[1] and commonly have an appendage, known as a finger brace or tang, attached to one of the finger rings.[1][2] This gives the user additional control when cutting. A swiveling thumb ring is new technology in shear design. The swivel shear offers increased flexibility and the ability to keep the wrist straight and the elbow down in all cutting positions, creating more comfort and control.