Tamiya Pulley Unit Set Educational Series

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

FEATURES:
Sheave set is designed to connect to a chosen design set such as a
    jumping 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, slim belts,
    circular pulley-blocks, rivets, a base, and motor holder.
Battery operated.
Small phillips screws for solid construction.
Structure of pulley is kept simple for upkeep functions like
    changing the belt, if needed.
Pulley rotates easily, allowing a pet dog to wag his tail, an alligator
    to open his mouth, or a dolphin to "leap" into the water, among
    other chosen motions.
Designed for fairly small and simple models.
Reverse rotation of pulley is possible.
Pictorial guidelines included.

INCLUDES:
One Sheave Unit Set

REQUIRES:
Assembly
Battery
Little 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 little kids. Contains small parts.
Instructions and box language written in Japanese and English.