Bones Ceramic Super REDSê are lighter and provide faster acceleration because the balls weigh much less. They create less friction and are thus faster than Super REDSê, with or without lubricant! When you get dirt into your Ceramic Super REDSê, the ceramic balls will help to re-polish the steel races flat again, providing a self-healing benefit because ceramic balls are so much harder than steel. Finally, ceramic balls will not rust, further lengthening their life. Ceramic Super REDSê use a bone colored shield with laser-engraved outer races for identification.