"cost is for one piece ,plese select design FIGHTER JET WITH 2 FLIGHT MODES: The wings of this tiltrotor military aircraft can be rotated, with both vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) fly models.when the wings forward, the STOL glide mode is open, when the wings rotate up, then the VTOL helicopter mode open. You can experience both gliding flying mode and helicopter mode on this one aircraft plane toy. 🛫DIE-CAST MILITARY PLANE: The body of MARINES UN-02 fighter jet plane is made of die-cast alloy material, the bottom of body and the airfoil and tail part of the wings are made of PVC. This model fighter designed base on the real one, 1:400 in scale, weight 5.3oz, 7.4*7.9*2.8 inches in size, fits well in little hands. 🛫PULL BACK & RELEASE AIRPLANE: OTONOPI fighter aircraft comes with pull back and release function, kids would be thrilled by pulling back then letting go and watching it roll forward by itself. Pull back and letting go action will make more fun to kids. 🛫MARINES FORCE PLANE WITH LIGHTS & SOUNDS: Come with 3 AG10 battery, take off the insulating sheet of the battery at the bottom of the plane, and then pressing the rear wheel, you will hear the sounds and catch the lights flash, take on the insulating sheet then the sounds and lights will gone. Further more the aircraft cockpit can be disassembled also. Kids will screaming on it. 🛫GREAT GIFT AND COLLECTIONS: It is a perfect birthday gift, Christmas gift to the children, or for aviation enthusiasts, military personnel or collectors, they must be love it so much. Meanwhile, as exquisite decorations and collection for offices or homes also is a good point."