Useful little set of wheels (and a tab to glue to the side of an object you'll be adding wheels to). The hole in this set fits a 1/4" dowel. Also shown below (for size) with a Paper Mache Coffin Box.
Note: Items cut from this heavy, light-grey chipboard burn easily so the laser-cutting process may leave charcoal residue behind. Save yourself a headache, and just wipe the cut edges of these items down with a dry paper towel before assembling or painting.
Set of 4 wheels (plus 4 tabs).