Mega Cuff
From PokéHeroes Wiki
A Mega Cuff is an item that increases your chance to hatch a mega-able Pokémon by 500% for 30 days.
How to obtain them
They can be found and bought at the Item Shop for 250 Nuggets 
for Normal Users or 225 Nuggets for Premium Users, respectively.
They are also sometimes bundled with limited Premium sale offers.
How to use it
It can be worn and activated from your party page.
Other
- Mega Cuffs are not tradeable.
