After years of having to sterilize my reusable bathroom toilet brush, I am now sold on these disposable scrub heads. The heads are octagonel and get into all the nooks and crannies needing cleaning and germ control. Additionally, I use the heads to scrub not just the toilet bowl, but can use new brushes for the bathtub and sink as well. This is an amazingly versatile product, and you don't need those yucky, smelly, dirty reused brushes in your bathroom, these come with a neat little plastic dispenser that easily fits beside the toilet bowl! Happy cleaning. Walmart delivered this product right to my doorstep!