Spare belt for Wimshurst machine. This item has two replacement belts, both of which have a 20" circumference.

• Smaller dia. belt dia. 0.13"
• Larger dia. belt dia. 0.20"
• Black in color
• Flexible rubber material

The flexible rubber belts is for use with the Wimshurst Machine (SKU# PH0848C or SKU# PH0848D) - this machine (with the belts) is a hand-cranked electrostatic generator that produces voltage and, in essence, creates lightening!