Perk boxes have have different rarities (common, rare, legendary) Perk boxes contain different rarites of weapons or armor:
Weapons
Helmet
Chest
Arms
Legs
Loot Box Rarity Drop Rate:
Common = 90% chance
Rare = 9% chance
Legendary = 1% chance
Use $FER tokens to mint item, improve drop rate of rarer items by pledging $FER tokens
Example: Pledging 100 $FER tokens on top of 100 $FER tokens for the unlock key increases Common loot box content to: common 70%, uncommon 25%, rare 5%.