Horseshoe Crab Sub (Qiji 3707)

About this set

This KEEPPLEY 3707 Horseshoe Crab Sub is part of the Octonauts series and lists 395 pieces on the box. The finished model uses red, blue and grey, with a horseshoe-crab-style body sitting on a tracked chassis, a transparent cockpit up front, a twin-barrel unit on top and a ring thruster on each side. Three minifigs come in the box, so the scene reads as exploration, rescue and protection. At 2/5 difficulty it is an easy build: work from the chassis up, settle the tracks first, then clip on the cockpit and keep the clear parts for last so you don't smudge them. A good pick for younger Octonauts fans, small-scale display builders and parents building together.