Click to expand Tap to zoom Penn Elcom - A5251 - 40mm Surfacemount Castor With Skid by Penn Elcom Save $-23.99 $23.99 | / SKU A5251 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 40mm Fixed Castor fits to edge of case.Sold as individual items. Part No. A5251 Material High Impact Polypropylene