Black Ceramic High Speed 8mm Bearings Bearing Style:Closed | Dust Proof Bone ball bearings are not

Bone ball bearings are not ABEC rated

Comfort Felt Tongue – Softer tongue that allows for more flex and comfort

Available in two Bearing Style: Open: Open style is good for Faster and Longer spin

Easy Installation: The heels are easy to install

it can be used for Cycling

Black Ceramic High Speed 8mm Bearings Bearing Style:Closed | Dust Proof Bone ball bearings are notJT Skate presents new improved high quality Black Ceramic bearings with P5 highest precision for fastest, smoother and longest spinning professional bearing in the market. Less noise than ordinary stainless steel ball bearing, especially corrosion resistance. ABEC 11 certified and P5 policed made it better than any other bearings in the market. Tested and Guaranteed. Features: Silicon Nitride Black Ceramic Ball Ceramic Balls to prevent it from water