A buckle arranged to connect a band member to a connected member includes a base having an attaching portion for the connected member, a base portion, and opposing lever member supporting portions projecting from the base portion. The tine transmission is rotatable about the vertical shaft between a first position in which the tines rotate in the same direction as the wheels and a second position in which the tines rotate in a direction opposite the direction of rotation of the wheels, thus allowing easy conversion between SRT mode and CRT mode. This generates corresponding HTTP transmitted and received data in the test object language.