BABY FISH TUNA 160G

"Light meat tuna flakes" is a common term for a type of canned or pouched tuna product made from smaller tuna species, most often skipjack or yellowfin tuna, which have a softer texture and a pinkish-to-light-tan color. The "flex" in your query appears to be a typo for "flakes", referring to the form factor of the fish pieces.