Straight intermittent catheters, often just called straight catheters, are designed to drain urine from the bladder for individuals with neurogenic bladder or other condition in which the bladder does not function properly. Straight catheters are available in straight and curved packaging, male or female or pediatric lengths and a variety of French sizes. Your phsycian may order a 14 Fr female catheter. This means a size 14 female catheter. Buy female and male straight catheters from LifeSupply.ca and your catheters are delivered quickly and discreetly right to your door. You can even have them delivered automatically at any interval you choose and you can change the delivery amount and time any time you want.