PIE gives 50% of its own margin by default to the nonprofit you choose, or the share set in your agreement, and sends it at least once a year. It is PIE's own money: a share of what PIE keeps after its cost, not a share of the price you pay, so it can be small. Buying through PIE is not a donation by you.
ViewSonic Wheel Kit for EP5520, EP5520T, EP5540, EP5540T, EP5542, and EP5542T, with Brake
$133.76