Full Ceramic 608 Bearing 8 x 22 x 7 mm Si3N4 Fastest Fidget Spinner Bearing by ACER Racing</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>AUTHENTICITY GUARANTEED ONLY WHEN PURCHASED FROM ACER RACING: OTHER SELLERS ARE COUNTERFEIT</li><li>Proprietary inner tolerances only from the experts at ACER Racing</li><li>FULL Silicon Nitride Ceramic construction. Silicon Nitride is the hardest & best Ceramic material. No lube & no seals for the fastest fidget spinner spinning time</li><li>7 Diamond Polished Ceramic Nitride Pro Series balls by ACER Racing</li><li>ABEC 7， Lightweight Nylon Cage from the leaders in fidget spinner bearings</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41Wda%2BCbZfL.jpg' noproxy></br>