Edgeless Safety Cube

{{Technology Infobox
| image = FileEdgeless Safety Cube blue.jpg|250px|
| name = Edgeless Safety Cube
| affiliation = Aperture Science
| type = Calibration-based ball
| maker =
| usedby =* Chell
* ATLAS and P-body
| entity =
| designer =
| voicedby =
| hidei =
| hideu =
| hideg = yes
{{Quote|You have no idea how tiring it is to praise someone for placing an Edgeless Safety Cube into a receptacle designed to exactly fit an Edgeless Safety Cube.|GLaDOS|Portal 2|Filemp coop fling 3end04.ogg}}

The '''Aperture Science Edgeless Safety Cube''' is a testing element used throughout the Aperture Science Enrichment Center, introduced in ''Portal 2''.

== Overview ==
The Edgeless Cubes open doors or activate platforms when placed in a circular Edgeless Safety Cube Receptacle|receptacle, serving the same purpose as the Aperture Science Weighted Storage Cube|Weighted Storage Cubes. Additionally, they can also be used to depress the 1500 Megawatt Aperture Science Heavy Duty Super-Colliding Super Button|Super Button if placed carefully. Similarly to their cubic counterpart, they appear blue when neutral, and turn yellow when placed on their button. 

== Appearances ==
In the single-player campaign, the Edgeless Cubes appear only in GLaDOS%27_testing_track_(Portal_2) Chamber 06 of GLaDOS' Testing Track, in a number of two. They can be used to solve the room's puzzle. They are featured more extensively in the Cooperative Testing Courses, appearing in such locations as Cooperative_Testing_Courses Chamber 02 of the ''Team Building'' course, Cooperative_Testing_Courses Chamber 04 of the ''Mass and Velocity'' course, or Cooperative_Testing_Courses Chamber 03 of the ''Hard Light Surfaces'' course.

== Behind the scenes ==
The advanced version of ''Portal'''s GLaDOS%27_testing_track_(Portal) Chamber 17 features a FileSphere cube.jpg|Weighted Storage Ball. It is unknown if it's related to the Edgeless Safety Cubes.

== Gallery ==

FileEdgeless Safety Cube yellow.jpg|Edgeless Cube's skin when placed on its receptacle.
FileP2 edgelesscube button.jpg|Ditto, with its receptacle.
FilePeti edgeless safety cube.png|Edgeless Safety Cube icon in ''Perpetual Testing Initiative''.

== List of appearances ==
* ''Portal 2'' {{1st}}
* ''Peer Review''
* ''Perpetual Testing Initiative''

CategoryAperture Science technology
CategoryPortal 2
CategoryAperture Science testing elements
CategoryAperture Science cubes