What is "skill MIX" mean? It is a pre-painted plastic model is based on the concept to "! Enjoy even from now." Convertible Kit AAM-4 added IRST test machine repair the antenna, form type I, and J-type outriggers and some (Gifu) modernization repair machine form type II-intake side AC14 F-15J flight experiment development team , AAM-5 test bullets, machine number decal attached. AC14 is a luxury convertible kit to be able to make the four types! with stand Pre-painted Assembly Kit Main body size: (private emission unit, sold separately) W133mm x H48mm x D130mm battery-free