2-1/2 inch wide x 2 inch diameter black soft tread PVC roller， ball bearing swivel， foot brake and Universal stem mount with adjustable height (2 Pack)

3/8 inch x 1-1/2 inch friction stem mount plus plastic sockets for use on most metal and wooden bed frames

125-lb load capacity each

Soft and wide wheels and 360-degree swivel allow for easy motion on carpet or hard surface floors with side brake for locking into place

Adjustable stem can be finger-tightened to dial in height with 1-3/4 inches of adjustability to raise a bed several inches above a standard bed caster， instantly creating usable storage space

Brake keeps a bed immobile once moved

Mounts easily with included furniture socket