(4 PACK) PENN ELCOM 5295/5299 plug-in Casters with Caster Sockets.
The 2" Black rubber tire is mounted on a ball bearing swivel assembly and the load capacity is 100 lbs. per caster.
* Sockets require a 9/32" diameter mounting hole and 1-3/32" centers. See picture #2 in the listing for exact measurements.