U-VSG5370 / U-VSG5373 / U-VSG5375 / U-VSG5378 / U-VSG5380 / U-VSG5383.NITIFLEX NITINOL STONE BASKET HELICAL.MATERIAL NITINOL HELICAL DESIGN(4 WIRES).LENGTH 90/120CMS. SIZE 2.4/3/4FR.DESIGN FOR ENDOSCOPIC MANIPULATION,DISLODGING-ENGAGING-REMOVAL OF RENAL,URETERAL STONES