WIPER ARM

A wiper arm (11) includes an arm head (13), a cover (17), and an arm body (14). The cover (17) includes a top wall and a wall part (17a, 17b). The top wall includes a fastening part extending toward the arm head (13) side. The wall part (17a, 17b) includes a protruding part (17e) extending toward the arm head (13) side. The arm body (14) includes a connecting part (14d) that can be connected to the arm head (13). With the arm body (14) and the arm head (13) being connected by the connecting part (14d), the arm head (13) is covered by the cover (17). By one portion of the fastening part being engaged with the arm head (13), the other portion of the fastening part is brought into contact with the connecting part (14d), and the protruding part (17e) is brought into contact with the arm head (13).