| Image | Summary | ||||
|---|---|---|---|---|---|
 | ISC KH255 Swivel Eye (cap screw) | asymmetric D | full-auto | lift-and-twist | early intergrated-swivel carabiner |
 | ISC Offset Oval Karabiner | offset oval | full-auto | lift-and-twist | aluminum offset oval for professional work |
 | ISC SH903 | asymmetric D | full-auto | press-and-press | early triple action carabiner snaphook - serious flaw |