What the Best harness for highchair Pros Do (and You Should Too)
https://www.goodreads.com/topic/show/19884371-10-undeniable-reasons-people-hate-harness-for-highchair
I bought this as a shower gift for a close friends grandchild. My daughter n law used it for our granddaughter and it was amazing. Packs up so small and can be used almost everywhere on any chair.