This is a pair of “Qui Che Gua Gou”, or “car hooks” made in China, that can be hooked around a headrest post and allows you to hang a bag on the lower hook up to 3 kg (about 6-and-a-half pounds) in weight. Apparently, the hooks come in various characters. These are clearly meant to represent Superman.
*I bought this at a gas station store and, although there is no date on the packaging, I believe that it was produced in 2018.
