Eisco Labs Mechanical Demostration set -Worm Gear Drive

Constructed with heavy duty metal and plastic Dial to show rotation Unit is open system to study and sandwiched by two clear plastic plates. Nice bench top or desk top itemYou may also like AC/DC Power Supply Controller - 2 Variable DC Outputs 0-6V/250mA, 2 Fixed AC Outputs 6V/10W & 12V/20W - Controller for Ripple Tank Model PH0767A - Eisco Labs.