Guide wires are used as a guide rail for probing and a subsequent catheter insertion during interventions in the peripheral vascular system that are performed on the basis of the Seldinger technique. Other catheter systems also use guide wires for insertion, both into arterial and into venous vessels. Arterial access is possible either via the femoral artery (arteria femoralis) or via the brachial artery (arteria brachialis). Exemplary indications are: PTA, intravascular, hemodynamic catheters or ports. SYNLAS offers most suitable guide wires for different catheter systems.