A stylet has a proximal end a distal end and an outer surface. The stylet is substantially cylindrical. The outer surface of the stylet is treated, or roughened, preferably by a glass peening or a bead blasting operation, such that its maximum profile peak height is greater than 30µm, its roughness average is greater than 5µm, and its root mean square roughness is greater than 8µm. This results in reducing the removal force of the treated stylet from a silicone catheter.
