This is the 1/72 Scale F-21A Lion Combo Plastic Model Kit from Hasegawa.
One decal sheet with markings for 4 aircraft versions:
1) US Navy, VF-43, #28, 1985-1989
2) US Marines, VMFT-401 #05, 1985-1989
3) US Marines, VMFT-401 #11, 1985-1989
4) US Marines, VMFT-401 #02, 1985-1988
Scale: 1/72
Length: 8.5" (216mm)
Wingspan: 4.48" (114mm)
Total parts: 108 (54 for each aircraft)
0-HSGS0986