The Instrument Coaster set is a 6 piece set of replica aviation instruments. The coasters are made with a polystyrene frame with a black rubber anti-skid base. Each of the 6 Instrument Coasters measure approximately 3 Avion Cargo, Attitude Indicator, Aircraft Instruments, Aviation Decor, Aviation Fuel, Cessna 172, Pilot Training, Pilot Gifts, Flight Deck