Like yours it makes life easier & a lot less messey than using those 1&3/4 pint bottles with the built in plastic tube. It has that bent piece of alloy pipe which hooks inside the fill/level hole quite nicely, perfect for topping up but as it only holds a 1 & 3/4 pints it takes a little longer on refill after oil change.Neva knew there was a kind of official one!!
Hilka do a very handy oil sucker which is great for emptying the brake (or ACE) fluid reservoir prior to doing a straight forward 24 mth brake fluid change change (you can then start with fresh fluid straight away). All the best.