JJ Soft Stiff Kit Polyurethane Double Loop Ureteral Stent is a 100% thermosensitive polyurethane highly radio-opaque stent with retrieval tether Guaranties an excellent patient tolerance and an encrustation high resistance. It can be up to 12 months indwelling. The set includes Stiff Nitinol guide wire, a connectable pusher and a simple pusher.