The Twitch Prime Pack #2, released on May 9th 2018, is a special set of items released for free to Twitch Prime subscribers who play Fortnite Battle Royale.
It includes the following items:
Trailblazer
OutfitTenderizer
Harvesting ToolTrue North
Back BlingFreestylin'
Emote
To get them, you must be a Twitch Prime member. If you have Amazon Prime than you also have Twitch Prime, since Twitch Prime is free to all Amazon Prime subscribers.
How to get[edit]
To redeem the items you need to go to this website:
https://www.epicgames.com/fortnite/en-US/twitch-prime-pack
and follow instructions to link your Twitch account to your Epic game account.
Then, the items will appear in your Locker.