These are made from solid brass.

This is a pair of collars.

These best suit a 15mm pipe.

They simply slide over the radiator pipe, covering up the floor/wall hole in which the pipe passes through.

Natural brass colour.

(Also available in silver aluminium in my listings)

The dimensions:

Outer diameter : 38mm

Hole diameter: 15.2mm

Width: 3mm

If you require a single collar, then use below link:

https://www.ebay.co.uk/itm/234950110179?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=TvuJvUSCRRC&sssrc=2051273&ssuid=TvuJvUSCRRC&var=&widget_ver=artemis&media=COPY

Any questions, please ask.

Thank you for visiting!