8 piece Ceramic 627 Inline Skate Bearings Kit | 627 Bearing Kit 20x47x14mm | 6204 5x10x3mm Ceramic Bearing This is

5x10x3mm Ceramic Bearing This is a 3mm width bearing

2 - 5x8 mm

In-board Front Suspension system features horizontally-mounted front dampers to enable a low-nose profile to mount the new-mold aerodynamic polycarbonate body shell

Both have a 13mm hex

It is a great and complete bearing kit

8 piece Ceramic 627 Inline Skate Bearings Kit | 627 Bearing Kit 20x47x14mm | 6204 5x10x3mm Ceramic Bearing This isNOTE: These bearings are ABEC7 size 627 2RS bearings for 7mm axles NOT 608 bearings for 8mm axles. The inner diameter is 7mm which some skates use please check your particular skates to see if this is what you need. If not, we also sell 608 ceramic skate bearings which are for standard 8mm axles with an inner diameter of 8mm. For skaters looking to upgrade from their Fafnir 37K 8 ball bearings these are the best choice. With our National and World