Zabimaru is a fictional sword from the anime and manga series Bleach, created by Tite Kubo. It is the zanpakuto of the character Renji Abarai, a Soul Reaper who protects the living world from evil spirits. Zabimaru has a unique design, resembling a snake, and its abilities are tied to its name, which means "snake tail" in Japanese. In its shikai form, Zabimaru can extend and contract like a whip, allowing for versatile combat techniques. When released into its bankai form, it transforms into a larger, more powerful version, enhancing Renji's strength and agility in battle.