 Ligatures are also made out of wire, wire mesh, plastic, naugahyde, heavy nylon fabric, wood, string, or leather.Ligatures fall into two general categories, depending on whether the band contacts the reed or a pressure plate, either riding the band or adjusted inward from a block mounted on the band, using a thumbscrew, is used.Various features are incorporated into the design of ligatures to hold the reed securely while minimizing pressure distortion of the reed and allowing maximum vibration.