Juniferce

Special Containment Procedures:
SCP XXXX is currently stored in Area ██ in containment locker A-1█. It can only be accessed by authorized level 2 personnel.
Description:
SCP XXXX is in appearance a medium-sized men's fedora from the brand █████ ███. It is dark gray in color with a blue ribbon wrapped around its circumference. The inside of the hat has a large dark shadow, but when light above 200 lumens hits the shadow, it disappears. When something enters the shadow inside of the fedora, the object is instantly transported to a nearby piece of headwear. When test subject █ threw a rubber ball through the hat, the ball exited through a security guards helmet which the guard had taken off to clean. If a partial part of an item is stuck through the hat, the partial part on the other side of the hat. If the portal is closed while an item is stuck through, the item will be sliced along the entrance to the portal.
Addendum:
SCP XXXX was discovered being used by █████ ███████ in ████ █████, Indiana. █████ was using the hat to kill nearby bystanders by sticking a knife through the hat to stab their target's head. When █████ was apprehended by Task Force ██████, they ended their life. Researchers are not sure where SCP XXXX was made, or why it has the properties that it possesses.