Tamiya Pulley Unit Set Educational Series

This is a Wheel Unit Set for Different Designs.
    It's from Tamiya for very experienced design builders.

FEATURES:
Wheel set is developed to attach to a picked design set such as a
    leaping dophin, an elevator, a moving pet dog, alligator, or revolving
    bird cage.
Contains white, black, and gray plastic parts attached to sprues.
Other parts consist of an electric motor, belt guides, skinny belts,
    circular pulley-blocks, rivets, a base, and motor holder.
Battery operated.
Small phillips screws for strong construction.
Structure of wheel is kept simple for maintenance purposes like
    replacing the belt, if needed.
Pulley turns freely, allowing a pet to wag his tail, an alligator
    to open his mouth, or a dolphin to "jump" into the water, amongst
    other selected motions.
Designed for relatively small and simple models.
Reverse rotation of wheel is possible.
Pictorial instructions included.

INCLUDES:
One Wheel Unit Set

REQUIRES:
Assembly
Battery
Small Phillips Screwdriver
Designing Knife
Sprue Cutters
Long Nose Pliers

SPECIFICATIONS:
Base: Length: 4-3/4" (12.3cm)
Width: from 1/2" to 1" (1.5cm to 2.5cm)
Height: 1/4" (7mm)

COMMENTS:
Stay out of reach of children. Contains small parts.
Instructions and box language composed in Japanese and English.