JESA 608 Ceramic Roller Skate BearingsThe Bont Ceramic quad roller skating bearings are back and better than ever! In collaboration with JESA, one of Switzerlands best specialty bearing manufacturers, we have created the best quad roller skate bearing. In other words, Bont Ceramics are lighter, have extended durability, and are more precisely round in comparison with the best steel ball bearings. Above all, this results in faster speeds. Made in Switzerland, Bont ceramic bearings have