Tamiya 70257 - Walking and Swimming Duck STEM Project Kit  [70257]

Tamiya 70257 Walking & Swimming Duck - Hands on STEM model

The Tamiya 70257 Walking & Swimming Duck brings simple mechanics to life, offering an engaging build that demonstrates motion and waterproof design. This kit blends playful movement with practical learning, suited to hobbyists and collectors who enjoy constructive, interactive projects.

Mechanism and motion details

The kit uses a parallel linkage system to reproduce the duck's characteristic head bob. Core parts are molded from white polyethylene for the body and head, with a gray polypropylene gearbox. A compact submarine motor drives the unit at about 25cm/s on land and roughly 6.5cm/s in water. Expect around 1.5 hours of operation from a single AAA battery (battery not included).

Simple assembly and custom finishing

Designed for straightforward construction, the model snaps together and uses screws where needed so no glue is required. The package includes waterproof stickers for the beak and eyes so you can personalise the duck's appearance after assembly.

Educational display and practical use

Beyond its novelty, this model is a useful demonstration of basic mechanical linkages and waterproofing in small devices. It suits hands-on learning sessions and makes a compact display piece for anyone building an animal themed collection in the Educational Construction line.