Back strap:

This is how I did to change a broken back strap on my powerskip, it will work the same on all brands like poweriser, 7leaugeboots, projump, powerizer etc

1. Broken Back Strap	2. This is what you need: Cable ties, Ratchet buckle(Back strap), pop rivet tool, rivets with a big head, hammer, Screwdrive, Power cutter(Dont forget the power cutter cause its not in the picture)	3. Use power cutter to remove the head of the rivets.
4. If the rivets body stays even thou the head is off, hit the rivet body out with a hammer and a screwdrive.	5. Make holes in the new back strap with a screwdrive or something sharp, the two holes should have the same distance as the holes in the stilt.	6. Now take the pop rivet tool and mount the two rivets.
7. Put a cable tie around the strap and stilt to get the pressure sidewas on the rivet, so it doesent slip over the rivets head.	8. Cut of spare cable of the cable tie, put the black foam plastic in place and you are ready to go.