Here is a group of vintage casters five of them are metal. Three of them are wooden wheels.  The three wooden ones on the top all look like they match four on the bottom might all match but they don't have the same names on them but I would imagine they're close.

The one on the left is kind of an oddball.

These are hard to find when you lose one out of a piece of furniture. Pick these up and you'll be just fine next time you lose one moving

Please see the pictures for a more accurate description and ask any questions you have before bidding. Thank you and good luck!