description Knobs for Weber Summit series manufactured 2012 & later. Features Diameter: 2 3/8" Made of Plastic. Set of 2 Weber lighted knobs. brand-weber,brand-weber-model-291001,brand-weber-model-293001,brand-weber-model-293101,brand-weber-model-294101,brand-weber-model-297001,brand-weber-model-297101,brand-weber-model-298001,brand-weber-model-298101