Service Caster SCC-30CS620-PPUR-2-R620-2 Heavy Duty Casters Polyurethane Wheel, Swivel and Rigid Non-marking, 6" Size (Pack of 4)
</br></br>

</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/51OXrsjDwJL.jpg'></br>