Low Profile Roller

I put in a vinyl garage floor recently. Most of my tool cabinets are on castors. However some of the cabinets have very small castors since I need to keep the cabinets as low to the ground as possible in order for them to slide under my workbench. I didn't want the small castors to dig into my vinyl floor so I designed these low profile, high surface area rollers to screw onto the bottom of my cabinets. The overall height of each roller is about 1.5". Slide the sprinkler pipe over the 3D pri