A clip includes a male member having a head portion and a shaft portion, and a female member having a base portion, a fitting portion into an attachment hole for one attachment object, and a reception hole for the shaft portion. The clip is formed to hold another attachment object between the head portion and the base portion. An inside of the reception hole of the female member includes a first sliding contact portion relative to a first cam portion formed at an end of the shaft portion, an engagement concave portion relative to an engagement protrusion formed in a middle of the shaft portion, and a second sliding contact portion located at a hole opening of the reception hole and relative to a second cam portion formed at the engagement protrusion. The shaft portion can be inserted into and released from the female member.