Legendary Bones bearings have been the industry standard ever since they were introduced in 1983, and are still a favorite with professional skaters. Fast, smooth, and very long lasting, they remain unequaled in their class. The Bones Super Swiss 6’s unique design features six larger diameter balls instead of the 7 balls used in most 608 bearings. The advantage of this is higher speed, quicker acceleration, greater strength and durability. Bones bearings have earned their fame through decades of proven dependable, superior performance for the best skaters in the world.