WRightChoice Shower Heads are available in a choice of slimline or standard. The internal workings, the 6 settings, and the spray pattern are identical. The shape of the shower heads are different and your personal preference will determine which one you buy. I prefer the slimline, my wife prefers the standard, and we sell the same number of each style.
The shower head will connect to any shower hoses and it is the shower hose which has a cone one end and which fits into the shower head holder. There is no reason to favour one over the other.
You could buy one of each at £19.99 or you could peruse the photos below and decide which one you prefer:-