Split Klick is a brand of patented washers used when installing faucets.

Split Klick self-aligning washers with patented alignment feet save time in aligning faucets to sink tops
Split Klick TOP HAT washers with patented gripping teeth eliminate faucet crawling/moving on stainless steel sinks. The patented TOP HAT washer “klick” apart to permit repair of faucets that move “crawl” on stainless steel sinks without disconnect the water lines.
Saves up to 30-minutes when installing a sink
Automatically aligns faucet to sink
Eliminates breaking granite and ceramic counter tops
Eliminates faucet movement on stainless steel sinks
High quality NYLON 6 washers never lose shape and last a lifetime
Eliminates multiple back-breaking trips under the sink when replacing a faucet