It can not be removed because the head is not a plug. I thought that plugs were commonly purchased, but I could not attach the head to the high pressure washer by removing the head which is inconvenient. It will be annoying if the head breaks.
The thickness of the hose and how to use the shower nozzle is not bad. It is easy to use if it is an unnecessary use if the hose is too thick. Since there is no hose reel, it was purchased separately. Recommended, if you show us a suitable reel, hose clip etc., you can buy it together.