GIANTMicrobes - Sperm Cell (Spermatozoon)Our little swimmer is the stuff of legends. You can bank on it! A fun hands on way to learn about your fascinating reproductive system. Makes a very memorable gift for friends, students, nurses, doctors, fertility professionals, biology fans, teachers and anyone with a healthy sense of humor! Features high quality materials and comes with an educational printed card with fascinating facts about this cell. Pairs well with our Egg Cell plush. Size: 10 x