It is a jeweler's preference to take a ruler, a big shield and a blue bottle for synthesis.
Clothes and red bottles are jewelers' favorites.
Pay attention to the choice of your own materials, and you should be able to make 4 holes.
For example, if you throw a blue bottle with troll holes, although this is out of the jeweler's preference, the upper limit of the number of holes in the item itself is 3.
So there are three holes.
If the jeweler is stable, he will add yellow bottles. Just try those ones anyway.
You want to gamble on super-high protective clothes, get an ancient armor, use a white bottle, make it super-strong, always synthesize it, make it 15ED, then throw a poison bottle, make it transparent, and then put a 4 # rune, and it will be 4 s. If you want 3S, put a 3#
If you can't say 4S, it should be the material you choose. You should choose clothes that can produce 4S, but all clothes can be 4S in essence. Did you choose ETH's Mage A?