It depends on what you're wanting. Usually on SB's site, the description lists what is included and what is not included. In this case, PE, Decals, Masks, and Instructions are NOT included. I downloaded the instructions from scalemates.com. I wasn't going to use any of the kit markings, so I didn't need the decals. I picked up the 'Space' set which included the IP, a few other details, and seatbelts (PE). And I picked up a few of the resin/3D printed extras, propeller, oil cooler, and landing gear for some extra detail.