@juli_bg_bs @jfeldman_epi The only larger size package (>2) I've seen widely available in the US is a five pack of flowflex from Costco which was around $6-7 per test. I think it's out of stock now (doesn't appear on the web site).
@juli_bg_bs @jfeldman_epi 唯一更大尺寸的包（