Stainless steel chimney trim collar, split (can easily be put around an existing chimney) to fit a 6/12 pitch ceiling (or similar). 1/16" thick SS. Inside diameter for 10" pipe, Outside diameter is 18". The trim is cut as an oval to make a perfect diameter when looked at from the bottom of the pipe. Glue on or drill your own mounting holes. Use as is or polish to your desire. $60 obo