About this 3D model

I made this to protect my floor from being marked by the casters for my Husky 52" and 62" workbenches from Home Depot. The casters they supply are made of a harder plastic and I felt it could scratch things up and I didnt like the wheels for stability so I designed this as one of my 1st designs. They should fit right over and snug. You can play with the infill to get the best feel you want but I liked 40% as it was solid enough to hold the weight without crushing and still a bit flexible.