Carabiners of the "not for climbing" variety, blue and red. One came with either a water bottle or a backpack (I don't remember which), the other was in a 3-pack at the 99¢ store. The left one is held open–using paper in the hinge–to show the lack of a pin-and-hook at the closure, which prevents the gate of the carabiner from bearing load. This contributes to the 150 lb. load limit and to the low manufacturing costs. Background is a white Ikea tabletop. Brightness has been increased to show detail.
<a href="//commons.wikimedia.org/w/index.php?title=User:Polyparadigm&amp;action=edit&amp;redlink=1" class="new" title="User:Polyparadigm (page does not exist)">User:Polyparadigm</a>
24 September 2005 (according to <a href="https://en.wikipedia.org/wiki/Exchangeable_image_file_format" class="extiw" title="en:Exchangeable image file format">Exif</a> data)
<span class="int-own-work" lang="en">Own work</span>