1. Your mount comes with 1.125" (29mm) inserts installed

2. If this does not fit your canopy leg, select one of the additional inserts 1" or 1.25"

3. Press one of the two retaining tabs on the side of the MomentLock to disengage the insert then simply pull the insert out

4. Take your chosen insert and insert the rear locking tab into the MomentLock and then press in subsequent side locking tabs

5. Repeat for other insert