From Emil Chronicle Wiki

[edit] Purchase

It can be purchased from the Guild Merchant in Battleship Island for ???? gold.

[edit] Stats

Basic	Battle
Weight 5.6 Content 7.0 Category Mask Race All Races Gender Unisex Level 20 Jobs Every Job Repair Kits  ???	Durability 5 Max Durability 5 Defense 2 Magic Defense 1 Bonus Stats SP -10, STR +3