I just use oversized ‘reducers’
I.e a 7mm barb for the pole hose into a 10mm barb for the main hose. So a ‘10mm-7mm barb reducer’ on eBay or wherever.
Because they are so oversized you don’t need any clips. You just put the end of the hose in boiling water to get them on, and once cooled, they are set and stuck. I’ve done it for years and never had an issue, means there isn’t any clips to catch on things/hands.
I can’t actaully remember what sizes I used, I just made sure it was oversized by a fair way.