This mod provides useful item/blocks about xp for you.
I mainly update this mod in the latest minecraft version.
How to use
Solid Xp ・・・ Hold it and Right Click. Then , you can get experience which included in it.
Xp Extractor ・・・Shift+RightClick to change amount of extracting. Right click to extract your experience. You can get Solid Xp which including experience same amount as you choose.
