Now I think I need them instead :)
https://www.wilko.com/en-uk/wilko-hose-mender/p/0338921 These are good to join/extend 2 together.
I usually go for the sort that screw tight. This is literally the first of that sort I could find on Amazon, not one I've looked into https://www.amazon.co.uk/kuou-Repair-Connector%EF%BC%8CQuick-Connector-Extender/dp/B08FG12H94/ref=mp_s_a_1_12?dchild=1&keywords=hose+connectors&qid=1621176316&sprefix=hose+c&sr=8-12 I'd have thought this sort would work loose but I may be wrong.
Thanks OP but this price seems to have disappeared, now almost £5
Heat added thank you @Deelon