LEGO Lloyd's Jet Mech (71845)

The value of a convertible is whether both configurations are worth having, and here the jet and the mech each stand on their own. The mech mode has the joints and stance to strike real poses, and the jet mode is a coherent vehicle rather than a mech folded awkwardly in half. Moving between them is the play, and the design keeps the transition sturdy enough that pieces stay put through repeated handling.

The assembly is a satisfying mid-length sit that spends its parts on structure and joints, which is exactly where a play-focused mech needs them. The result is a figure tough enough to survive actual battles rather than a fragile display model that has to be handled with care. That durability is the quiet thing that separates a mech kids keep playing with from one that lives on a shelf because it cannot take a knock.

Between the two modes and the poseability, the repeat value is strong: there is always another stance or configuration to try, which keeps it in rotation. On a shelf the mech mode reads as a dramatic figure. The parts are themed Ninjago elements that are more character-specific than broadly reusable, but for a durable convertible with real play range, the value is fair for the tier.