Clips to hold my CPAP mask straps in place. After many years of use, the velcro no longer held well enough to keep the strap length properly adjusted.
OnShape Source: https://cad.onshape.com/documents/5c678213ea0f9956f1d827f6/w/2503c5f03f9a5e9b12058c7b/e/11aa29927606555c0e193573?renderMode=0&uiState=6626ebf521e7eb3e0281b5a4