Casters Replaces Part Number: 6414, 306414 Caster Compatible with Genesis 1000-5000, Genesis A,B,C (2002-2003 model years ONLY), Genesis Gold B/C (model year 2002 and newer), Platinum 1, for Weber Genesis, Summit, Silver, and Spirit Grills Also Fits charcoal grills: Ranch Kettle, Performer (prior to 2005 model year ONLY) Caster Dimensions: 4.6"H X 1.5"W X 2.5"D, Package included 2 Caster Wheel with 2 Caster Insert. The assembly of two accessories requires both parts to be firmly pressed together. You need to use a lot of force to hold them completely in place Casters are provided with wheel locking mechanism. This will help you better move the transport device and stabilize the device where you want to stop Compatible with Genesis 1000-5000, Genesis A,B,C (2002-2003 model years ONLY), Genesis Gold B/C (model year 2002 and newer), Platinum 1, for Weber Genesis, Summit, Silver, and Spirit Grills