They Do The Job & At A Great Price
I have hard well water. My toilet gets build up really fast. Nothing gets the build up off except for pumice toilet sticks. Once a week I scrub the bejesus outta my toilet with the pumice stick & it keeps the bowl in good shape. For the hole the water exits through, I have to awkwardly chip out the build up (usually once a month) with a flat head short screw driver because I can't get the pumice that far into the hole.
Rating: 5 stars