Perfectly Ordinary Household Sponge

Item #: SCP-XXXX

Object Class: Safe

Special Containment Procedures: SCP-XXXX is currently contained in a cylindrical, hermetically sealed container constructed from stainless steel, 12.5cm in thickness under normal atmospheric pressure, buried at an altitude of approximately 10,000 meters below sea level. At the bottom of this container is a sealed valve, to which a receptacle can be attached. This valve must be closed at all times, unless a hermetically sealed receptacle is securely attached. No less than one (1) time per month, a receptacle is to be attached to the container for no less than 36 consecutive hours. All contents retrieved in this receptacle are designated SCP-XXXX-1, and are to be catalogued and stored in hermetically sealed containers for further study. All containers used in this process are to be hermetically sealed, and are only to be opened under vacuum conditions by authorized personnel in hermetically sealed environmental suits.

Description: SCP-XXXX appears to be a yellow polyurethane kitchen sponge, of dimensions 8cm x 11.5cm x 21.5cm under normal atmospheric pressure, with an estimated dry mass of approximately 25 grams. The object has demonstrated remarkable absorbent properties (see Addendum SCP-EXXXX: Acquisition log), absorbing more than [REDACTED]liters of various fluids and small solids without becoming saturated (see Addendum SCP-XXXX-1: Recovered materials). Every attempt to analyze the interior of the object, chemically or through samples or spectral analysis, has failed, as all powders, fluids, or radiation introduced into the object's environment have been absorbed.

Addendum SCP-EXXXX (reprinted from Document 07-E-2██████):
Transcribed from debriefing of Agent ███████ ██████, ██ █████, 1952:
Object discovered in possession of [NAME REDACTED], housewife in ███████, ████████. [NAME REDACTED] was discovered dead on site, in kitchen of own home, body desiccated, all bodily fluids believed to have been absorbed by object. Body and object both recovered for analysis, without incident. (Dr. ██████: Body destroyed - [REDACTED], ██ August, 19██.)

Addendum SCP-XXXX-1:
Record of materials recovered from SCP-XXXX:
SCP-XXXX-1-1 ██ █████, 1953: █L blood, █L adipose tissue, testing indicates from [NAME REDACTED]
[DATA REDACTED]
SCP-XXXX-1-1█ [REDACTED]: 1L indelible dye - red, ██L petroleum, [DATA REDACTED]
SCP-XXXX-1-██ █ September, 19██: 1 SCP-E████, █L dish soap, ██L salt water, █L ██████ blood, [DATA EXPUNGED]
[DATA REDACTED]
SCP-XXXX-1-47 [REDACTED]: ██L [REDACTED] blood, ███████ bone fragment, [DATA EXPUNGED]
SCP-XXXX-1-48 ██ January, 20██: ██ bone fragments, ████L petroleum, [REDACTED]
[DATA REDACTED]