Jewelry can use two pieces of 14 faches, one is called Julio's heart, one is called Lei Kai's rose, and the other two pieces are added with 12 explosive drops, one is called a knife, and the other is bought by Shacheng. I forgot the name, but I can insert one piece of each kind, which is more than others' four injuries and four explosions. Of course, there are necklaces with sunburn, not to mention cutting gems. You can also make a few mesons to sell money and help others do OEM work.