A reel unit for a fishing reel includes a cover member, a first member, and a second member. The cover member is made of a metal plate. The first member is made of metal. The first member is welded to an inner side of the cover member, and is configured to protrude from the cover member. The second member is made of synthetic resin. The second member is integrally formed with the cover member and the first member to at least partially cover the first member.
