These were found along with other model boat, car, and film projector parts. I have no idea what they go to.
All the bearings spin by hand, but I have no idea how they will do at speed. They might be good, they might be bad - Please keep that in mind.
There are 2 shaft sizes. I measure 0.249" and 0.185" in diameter. The bearings that go with each of those shafts have outside diameters of 0.625" and 0.562" respectively. NOTE: I do not own precision Mitutoyo calipers and I'm not a machinist so consider those dimensions for reference and not exact.
Gears are not magnetic and look to be aluminum. Shafts are also not magnetic and are most likely stainless steel. Bearings are magnetic.
Ships USPS, FEDEX, or UPS ground depending on your location.