Pushbutton and Switch One-Piece Plates: Type - Pushbutton Identification Plate; Size - 22.5 mm; Operator Type - Pushbutton; Plate Shape - Square; Plate Size - Standard; Legend - Blank; Material - Plastic; Field Color - Red/Black; Height - 1.77 in., 45 mm; Width - 1.77 in., 45 mm; Manufacturer Series - EM22