This Is Your Brain on baby high chair harness
http://arthurjnyo335.unblog.fr/2019/06/20/9-signs-youre-a-toddler-chair-with-harness-expert/
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.