Ceramic Lightning Fishing Reel Bearing kits are an upgrade replacement to stock fishing reel bearings. These bearings have ceramic balls with stainless steel races, retainers and shields. Ceramic will never corrode, has less rolling resistance and is lighter and than steel. As a result ceramic bearings last longer and cast longer. All Ceramic Lightning fishing reel bearings are supplied dry, without grease or oil. Lubrication can be added upon request. Kit (2) SMR606-ZZ (2)