Per 
Item #: SCP-XXXX
Object Class: Euclid Keter
Special Containment Procedures: SCP-XXXX is to be contained in a large room with 2 windows. Two armed men are to stand outside the cell at all times to stop a future security breach. One light on the ceiling of the room is to be placed at the center of the room.
Description: SCP-XXXX is a diving suit mostly blue in color. It is capable of extending its limbs to an unknown length. Its arms bear 5 yellow stripes wrapping around the arms horizontally. Its head bears a mostly transparent mask in a T-shape. Its feet are like a duck's flippers, its 'toes' are blue in color, while the rest of the foot is the same yellow as the stripes on the arms. Security footage shows it lying on the floor with its body against the wall when no personnel are in the cell. Its head also has a 'mouth' which is in the shape of a vertical rectangle which has a horizontal split for opening and closing the 'mouth'. Testing has shown it is sentient and highly intelligent.
SCP-XXXX was first discpvered
Addendum: A test was made regarding SCP-XXXX, where a D-Class was told to wear SCP-XXXX. D-class complied and put the suit on. Upon the attempt to take it off, D-class remarked that he couldn't take it off even if he tried as hard as he could. SCP-XXXX quickly shortened its limbs and outstretched them again, effectively choking and crushing the D-Class. Upon attempt to discover more about its anomalous properties and known sentience, one researcher, at another time, cut an open wound into SCP-XXXX's left arm. Results were shown that it leaked black, ink-like liquid from the wound. These black liquid were found to be limited like a human's, and if all of it were to be removed from SCP-XXXX, it would be considered neutralized, and dead. After the death of the D-Class, SCP-XXXX had a drastic change in its behaviour, it gaining the ability to talk, and moves on its own outside of stretching its limbs.
Test A - 18/05/03
Subject: SCP-XXXX and SCP-173.
Procedure: Test to see the durability of both SCPs.
Results: SCP-XXXX decided to have a staring contest. It lasted approximately 2 hours before one of the guards asked if they should return SCP-173 to its cell but SCP-XXXX immediately declined and said he was winning the contest. 40 more minutes pass and SCP-173's 4 eyes all disappeared for a brief moment before reappearing, counting as "blinking" to SCP-XXXX, so it cheered and said "Ya-hay! I won!" After 2 minutes, SCP-173 fell to the ground.
Analysis: Absolutely nothing happened from this test. No outcome, no nothing. Just a staring contest between a statue and a diving suit.
Test B - 23/05/03
Subject: SCP-XXXX and SCP-682-J
Procedure: To see how SCP-XXXX reacts to the other SCP, and to find out how SCP-682-J reacts to other SCPs.
Results: As soon as SCP-682-J was placed into SCP-XXXX's cell, it quickly [REDACTED] and made a containment breach, causing a lot of other SCPs to perform a containment breach as well.
Analysis: Well, we're never testing SCP-682-J again.
Addendum 2: Guards checking SCP-XXXX found the entity in the corner leaking gallons of black liquid supposedly crying. When the guards asked what happened to it, SCP-XXXX responded that some corrosive entity assaulted it. It also said it might have been SCP-106 who assaulted it, but it wasn't sure.
Test C - 04/06/03
Subject: SCP-XXXX and SCP-682.
Procedure: Termination test of SCP-682.
Results: SCP-682 immediately attacked SCP-XXXX, causing serious physical damage to the suit's exterior. After that, SCP-XXXX grew its limbs to make it cover the whole cell. It threw SCP-682 against the wall. Then, SCP-682 ripped off SCP-XXXX's arm, causing pools of black liquid to spill out of the open wound. After that, SCP-XXXX had enough, it seemed, and performed a containment breach by making itself much smaller than usual and slid under the door. Knowing this, SCP-XXXX's Object Class has been changed to Keter.
Analysis: Well, now we know that SCP-XXXX isn't just a diving suit with stretch powers.
