May also be used for teaching anatomy and sterile cleansing techniques before, during, and after insertion. Male catheter model anatomy includes rectum, seminal vesicle, bladder, pelvic bone, prostate, urethral sphincter muscle, urethral meatus, glans, scrotum, pelvic diaphragm, and anus. Models use any catheter size 16 FR. or smaller. Each model includes instructions with anatomy diagram, plus a storage box. Three year warranty.