These pieces fit next to the clips that hold the trigger on a hoover spin scrub 50. The factory injection molded clips break and cause the machine to be inoperable. There is one other fix that I know of, and this one i came up with on my own. Can be printed in any filament and can be any layer height. On a P1S, this was a 3 min print. Print two and superglue these next to the existing clips.