4pcs FilterTech Premium Kitchen Faucet Hole Metal Plug Set
Faucet Hole Plug (Premium) is a part that plugs up the hole after removing faucet.
Size: 36mm x 22mm
Insert the blocker into the hole position on the upper part of the sink.
Insert the washer into the blockage bolt at the bottom of the sink, then lock it with the locknut.
Make sure to check the top and bottom of the sink for leaks.