This set of two ESCAPAC 1G-3 ejection seats is meant for use on later A-4 Skyhawks. This particular set includes the wrinkled parachute pack which some modelers prefer. If you want the tightly packed parachute pack make sure to look at sets 32046 (2) and 32047 (1) respectively. As always make sure to check references and timeframe on the kit you are building to make sure you have the correct seat.