Sorted this - it was all about finding the Elite part number which is BP2324201500.
As I expected they only seem to be sold in Germany, bikes24 came in cheapest in the end: https://www.bikes24.co.uk/elite-bottle-cage-ciussi-gel-black.html
@Fox started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Sorted this - it was all about finding the Elite part number which is BP2324201500.
As I expected they only seem to be sold in Germany, bikes24 came in cheapest in the end:
https://www.bikes24.co.uk/elite-bottle-cage-ciussi-gel-black.html