I had already seen the Lékué version that did not fit me as too big and my sense not handy.
Then I hesitated with his little brother the non deluxe version ref 7122 I have not taken because the tip was not fine enough to write easily (try writing with a large blunt pencil ... )
The prices 10 there is also another version deco pen where we see on the picture filling the rear. I thought that there had to be super accurate to aim the back of the pen without putting everywhere.
Finally, so I took this article in Deluxe version. So I have 2 sockets which allows me to manage the write size.
As it fills a syringe, so for the sake of cleanliness, you just unscrew the nozzle to fill it and then put the tip.
The barrel is made of soft silicone so you can write normally and press it to get out the chocolate for example.
Finally cleaning is very easy.
No regrets!
I hope my review will help to make your choice faster than me! much as my sharing is useful for you!