Universal Button Switch Action Pneumatic Material Cast Aluminum/Polycarbonate Depth 2 in Height 2 in Width 1/2 in Button Color Blue/Red/Green Color Silver/Green/Red/Blue/White/Yellow Button Dia 2 in Operating Temp -40 Degrees to 185 Degrees F Standards ADA For Use With Exit Doors Emergency Doors Etc. Includes (5) Button Inserts (7) Plate Messages and (3) Lens Covers Faceplate