Black Rollerblade Twister / Maxxum / Blank Cuff screws. They can also be used on Razors, Remz and USD skates for example.

The spacer has a diameter of 24mm. This is similar to most hardboot skates on the market.

The T-nut that goes inside the boot is perticular to Rollerblade skates. It can also be used on most other skates.

The T-nut needs a special rollerblade tool to hold it from spinning when the screw is being tightened.

Thereis one bolt, one spacer and one T-nut in this set.