Pitsco 38584 Crane Kit large-box Air-Tite housing prevents airflow between

Air-Tite housing prevents airflow between attic and living areas

See through film and tape

1 - Door knob

90-degree angle

Features a self-lubricating

Pitsco 38584 Crane Kit large-box Air-Tite housing prevents airflow betweenGive students an advantage an understanding of the mechanical advantage inherent in cranes. Simple machines such as pulleys, wheels and axles, and levers work together to help move heavy loads these machines helped build the world as we know it. Featuring laser cut parts, this Crane Kit can be built easily students quickly move on to experimenting with load, ballast, and other concepts. Highlights: For ages 12+ Simple machines such as pulleys, wheels