Fluidmaster 7110t smart cap universal toilet bolt caps are designed to offer a high quality replacement for broken or lost bolt caps. comes in white to match almost any toilet. built to last from high quality polypropylene plastic material to resist cracks, or breaks. the screw on design secures the caps to create a water tight seal so they won't get knocked out of place. this universal design works with most toilets or bolts. installation is easy, simply remove your old cap and nut, set the base, anti-spin washer, and old nut, then screw-on the cap, and you're done. choose fluidmaster smart cap toilet bowl bolt caps to easily cover up bolts in just a few minutes.