Four Sided Friction Block
- Buy 50 for $8.00 each and save 11%
Our 4-sided Friction Block makes friction experiments quick and easy.
Surfaces include paper, wood, sandpaper and vinyl. Threaded brass post allows for easy addition of slotted masses to all 4 sides. size: 2x2x2 in.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.