A connector that can satisfy the two requirements of improving workability in connecting and removing the connector, and securing connection strength. A fitting portion of the connector, which is inserted in a hole formed in a FPC, is configured to be flexible. The fitting portion is flexed to thereby make it possible to insert the fitting portion into the hole of the FPC by a small insertion force, and the fitting portion is elongated to thereby make it possible to press two contact portions provided thereon against a first terminal portion and a second terminal portion provided in the hole of the FPC, respectively.