Check the listing for details. 4 Set Fits We-ber 79499 Grills Locking Caster w/Insert (2012-2019) & (2012-2016). Color: Black, Condition: New. Listed at 59.98 USD. Description: Replaces Part Number: 79499. This kit includes 4 locking casters and 4 caster inserts. Compatible with We-ber Su-mmit Ge-nesis, Compatible With Su-mmit (2012-2019) and Ge-nesis (2012-2016). black This caster will not fit frames on models made prior to the 2012 production year. The casters are set with a locking mechanism, which can help you keep your equipment stable and keep your equipment from moving in the locked state, which helps you better transport and stabilize your equipment with safety. Purchase Notes: Pleases make sure the part number of new replacement matches your original equipment before ordering. If you encounter any problem, feel free to email us. We will be more than happy to respond ASAP(within 24 hours).