An illustration of a woman balancing on a wheel.

Woman Balancing

An illustration of a woman balancing on a wheel.

An illustration of a woman standing next to a spinning wheel.

Woman with Spinning Wheel

An illustration of a woman standing next to a spinning wheel.

Lefthand single thread worm and worm wheel.

Worm And Worm Wheel

Lefthand single thread worm and worm wheel.

Righthand single thread worm and worm wheel.

Worm And Worm Wheel

Righthand single thread worm and worm wheel.