this item holds up to 4 throwing knifes as a bonus action you can throw your knifes dealing 1d4 per knife 

as a bonus action you can make the knifes return to gantlet  

One per short rest as a action you can cast the spell Conjure Barrage spell but you can not throw your Knifes for the next couple rounds of combat

Notes: Damage: Piercing, Attune normally