Underwater Stealth (Qiji 1717)

About this set

This is KEEPPLEY 1717 “海底潜行” from the Battlefield line, a military submarine set listed at 114 pieces on the box with a 6+ age mark and a 2/5 difficulty rating. The hull is mostly grey with yellow, blue and green accents, carries the number LII-99, and features a transparent cockpit cover, a rear propeller, and torpedo/launcher assemblies along the sides, plus a diver minifigure and translucent splash pieces. The box highlights tactical espionage action and three minifigures. Build tip: gather the minifigures and canopy first, assemble the hull core, then attach the torpedoes and propeller, and save the splash effects for last so you are not prying small parts off at the end. The low difficulty suits kids around 6+ new to military vehicles, and the minifigures and splash parts work well for small underwater scenes.