The 16 Ply Red Treated Airway Buff provides a cloth polishing option for a variety of metal surfaces. This 10-inch version features 16 plies, while the 6-inch option is also available with 5/8-inch and 1/2-inch arbor compatibility. Both options use a red cloth construction with a double-dipped D-50 treatment and a biased-cut design. These treated airway buffs are intended for polishing aluminum, brass, copper, die-cast, and stainless steel. The 6-inch version is described as an extra-hard buff, while the 10-inch version is listed as a 16-ply buff. Each is sold individually and is an aftermarket replacement rather than an OEM part. A warranty against defects in workmanship and materials is included. These buffs are listed for universal polishing applications and are special-order items that cannot be canceled or returned.