Those are oxo containers and they can find them on Amazon

OXO Good Grips POP Container - Airtight Food Storage - 3.7 Qt Rectangle (Set of 4) for Cereal and More https://www.amazon.com/dp/B07XXMN2QJ/ref=cm_sw_r_apan_glt_fabc_0DFPWQ6PFQM4HC31HBME