Protect Chain

The Protect Chain is an accessory found in Kingdom Hearts and Kingdom Hearts Final Mix.

Etymology
The strange Japanese spelling for "Protect" (プロテス) is used throughout the Final Fantasy franchise, and the exact reason for it is unknown. While it certainly means "Protect" in context, it is possible it is also used as a wordplay to reference the mythical Proetus, king of Tiryns, son of Abas and twin brother of Acrisius; at the very least, this double-meaning is played on within the Kingdom Hearts series.