Here's a handy little tip to get those rims shining like new! **READ BELOW**IMPORTANT** Although "The Works" toilet bowl cleaner is sold over the counter to anyone, does not mean it is not dangerous. PLEASE use with caution. It is also VERY IMPORTANT that you use the neutralizer mix immediately following the application of the acid, leaving it on to long will allow the acid to seep into the aluminum and possibly make it brittle in the future.