A belt includes a belt main body extending in a long, narrow band. A frame-shaped body is attached to a first belt portion corresponding to a side on an end in a lengthwise direction of the belt main body. Multiple through-holes are formed in alignment in the lengthwise direction in a second belt portion corresponding to a side opposite to the first belt portion in the lengthwise direction of the belt main body. A locking member is included for attachment to a through-hole of the second belt portion so as to protrude from a front surface of the second belt portion. When the belt main body is mounted on the target object, the second belt portion is passed through the frame-shaped body, and the side of the frame-shaped body locks the locking member so as to prevent the second belt portion from coming out of the frame-shaped body.