LEGO Ninjago Kai Foam Sword Set with Back Scabbard Harness. This set includes two soft foam swords inspired by Kai, the Master of Fire. Features a red fabric back scabbard with fire elemental dragon graphics and adjustable black nylon straps for a custom fit across the back. Each sword is detailed with the Ninjago logo. Perfect for costume play, Halloween, or young Ninjago fans.