The Weber Gourmet BBQ System & Accessories work by utilising a cooking grate with a removable centre section into which various accessories fit, expanding your barbecue cooking options. Grates are available for Weber 57cm charcoal barbecues, Spirit 3 burner, Genesis and Summit gas models. All the accessories are interchangeable between grates as the removable centre section is always the same size. Specification: Gourmet BBQ System Sear Grate Specification Cast iron with a non-stick porcelain-enamel coating. It heats up quickly and evenly so moisture and flavour is seared in to you food. This accessory can be purchased individually or as part of the Sear Grate Set.