RAINFLOW is a pet brand ranked in the GlobalPetIndex Amazon Best Sellers snapshot of 4 September 2026.
Brand owner / operator: Individual trademark registrant (Chen Miaoshun) (China).
Flagship products: Donut calming bed.
Representative listing: ASIN B0DLGJKDP5 (#17 Cat Beds, rating 3.6, 671 reviews).
Company attribution researched from public trademark and seller records; see the rankings source links.