Per 
Item #: SCP-4573
Object Class: Euclid
Special Containment Procedures: The area surrounding and containing SCP-4573 has been purchased by the foundation and converted into Site-████
SCP-4573 is to be contained in a 150m x 150m x 150m stainless steel vacuum sealed chamber that is to be sealed shut at all times
Personnel with Level 4 clearance or higher are permitted to enter the chamber for testing between the hours of 1200 and 1400
Description: SCP-4573 is a large art installation measuring 85m in length. SCP-4573 is made from mild steel tubes and tensioned fabrics. The material of the fabrics is still currently unknown and matches no material on Earth.
SCP-4573 has a vacuum-like suction that randomly sets off between the hours of 1400 to 1200. In it's ████ years at the Foundation, SCP-4573 has yet to set off between the hours of 1200 to 1400
SCP-4573 has a vacuum-like suction power measuring upwards of 100 bars. This is capable of pulling trees straight out of the ground and sucking in anything within a 100m radius. Objects sucked inside of SCP-4573 will later re-emerge as SCP-4573-1. SCP-4573-1 are small shadow like creatures capable of consuming lifeforms, and decomposing them into materials that can be consumed by SCP-4573. SCP-4573-1 re-enters SCP-4573 approximately 3 hours after emerging, regardless of whether it has consumed a lifeform or not.
Subjects entering SCP-4573 find themselves lost and unable to re-emerge, describing it as an endless cave with no visible ending
