Roca tap replacement cartridges (Wokingham RG41)

A pair of new replacement ceramic cartridges for a Roca Loft Elite basin tap - type code AG0020903R. I bought these to replace a worn cartridge in my tap but found that the original cartridge was impossible to get out as it had been leaking for too long and had welded itself to the tap casing, so I had to replace the tap itself. Note that these are specific to this particular Roca tap. Please say when you can collect.