Salamu Alaikum, Is it Haram for a muslim to manufacture and sell wallets? Since they might be used by the buyer to keep their Credit cards and Credit cards are Haram in Islam because constitute dealing in Riba.

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.

Manufacturing or selling these wallets is permissible, and wallets have no association at all with what you mentioned about using credit cards for what is lawful or what is forbidden.

Allaah Knows best.