Heavy Duty Swivel Castors upgrade kit for Prestige PRO (4 pc)(P)Increase stability by replacing your Napoleon Prestige PRO 500 wheels with these Heavy Duty Swivel Castors. Durable stainless steel increases the durability and longevity while the rubberized wheels glide effortlessly over your deck or patio without damage. Integrated breaks mean that your barbecue is going nowhere once it's in place. Easily replace your old Napoleon Barbecue Grill wheels with these castors. Simply remove the original wheel casing