This buckle is especially for the Rollerblade E2 and the Rollerblade Endurace skates. It is unlikely that it will fit on any other skate.

The set includes both left and right

ANKLE BUCKLES
These type of buckles or straps all have only one hole on both sides. They only vary in length. As long as the length will work, you can use any brand buckle on any brand boot.

Buckles that are mounted like this are called SBM2 which stands forStandardBuckleMountwith a total of2bolts.