These stainless steel flavor bars fit my old red top Weber Genesis grill perfectly. The cost was about 35% of that for Weber porcelain steel bars. My old porcelain bars rusted out after about 10 years. Hopefully these will last as long. I cannot comment on durability as that will take years to determine. The new bars are very pretty and shiny and it almost seems a shame to dirty them up by cooking something on the grill!