... -ray and sign of calibrations Characteristics:1. Each set is equipped with 6 dilators, 1 guide wire and 1 disposable ... cleaning brush.2. With sign of visualization under X-ray and sign of ... calibrations3. With very smooth and nice surface4.Equipped with nickel-titanium alloy super-elastic guide ... , 7,9,11,13,15850 Reusable Bougie Dilator Set with Guide Wire