For step by step dilation of the intramural tunnel and ureter and or for stone manipulation, Designed to be usrd over a 0.038″ guidewire, 70 cm length with luer adapter to permit injection. Key features For step by step dilation of the intramural tunnel and ureter and / or for stone manipulation. Designed to be usrd over a 0.038″ guidewire. 70 cm length with luer adapter to permit injection. Ordering Information