Bones Ceramic Super REDS® are lighter and provide faster acceleration because the balls weigh much less. They create less friction and are thus faster than Super REDS®, with or without lubricant! When you get dirt into your Ceramic Super REDS®, 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 REDS® use a bone colored shield with laser-engraved outer races for identification.