Metre-long kits are detailed in stages, and that is exactly how photo-etched parts at 1:200 are organised. Individual sets handle cranes, catapults, ship's boats, railings or the masts of famous battleships, which lets you spread the work over time and over your budget. Add steel signal flags or the deck chairs of an ocean liner. The product name states both the vessel and the part of the ship the set covers.
A battleship at 1:200 runs past a metre, and every centimetre of it is on view, so multi-part etched series make more sense here than anywhere else. Hulls to fit them out are in 1:200 ship model kits, and the remaining scales are covered by ship photo-etched parts. Metal stairs and cranes show best above a 1:200 wooden deck — choose one cut for the same kit as the etch.