100% medical grade Soft Silicone French 6,8,10,12,14,16,18,20,22,24 3 way, 2 way Sterile in blister pack All Silicone Foley Catheter for single use is a thin, is a flexible tube passed through the urethra and into the bladder to drain urine. It is the most common type of indwelling urinary catheter, ended with soft rounded closed tip with Safe and symmetrical balloon inflation.