Danco 62322 1/2C SPLIT ESCUTCHEON CHROME Household, 1 Count (Pack of 1)

Very expensive for just 1 Piece, I pick up the same product at the plumbing supply house here locally for about $1.38. Big difference.

Although listed as "1/2 inch", this is way too small for 1/2 inch IPS (Iron Pipe Standard, used for most brass fittings). The "split" feature means there is a score line where you can cut it open, bend it around the pipe, and hope the two cut edges stay close to each other. I suppose you could tape the break together on the back side to hold it together.The finish is nice and shiny even though the escutcheon is plastic, and it is a bit pricey for what you get.

Smaller diameter than standard escutcheon but won't rust over time.