To surely supply a wire bundle to the end without any tangle.

A spherical presser face 21a which can pressurize the whole circumference of the internal diameter edge of the wire bundle WB is provided. A wire insertion passage 22a is provided in the central part of the spherical presser face 21a. The wire insertion passage 22a is to insert the wire bundle WB wound off from the internal diameter edge of the wire bundle WB so as to be supplied. This constitution opens an opening part of the wire insertion passage 22a in the internal diameter part of the wire bundle WB so that the wire W wound off from the wire bundle WB is drawn to the central side at all times from the start to the completion of the use. The wire bundle WB thus hardly causes to be out of shape.