To provide a connector capable of rotating and/or sliding at an engagement part.

This connector is formed of a male member 4 constituted by a tip part 41 and a base part 42 and connected to a strap body 3 at the base part 42, and a female member 5 constituted by tip parts 54 and 55 and a base part 52 and connected to the strap body 3 at the base part 52. The both sides of the tip part 41 of the male member have hemispherical projections 43 and 44. The tips 54 and 55 of the female member have recesses 58 and 59 capable of receiving the hemispherical projections 43 and 44. The projections 43 and 44 and the recesses 58 and 59 are configured to be engageable and disengageable.