A transaction terminal device executing a customer transaction includes a tamper-proof secured module detachably incorporated in a main unit, and an unsecured module that is not tamper-proof and is embedded in the main unit. The display system includes a display apparatus equipped with a wireless communication function, and a human input device connected with the display apparatus to transmit user input data to the display apparatus. The compositions and methods of the present disclosure may makes it possible to obtain fast coloration of keratin fibers that is resistant to light andor to washing. The apparatus further includes an actuator configured to rotate the base, whereby the finishing tool is caused to engage the workpiece with a constant and known force.