Ichigo Kurosaki's Bankai, known as Tensa Zangetsu, features a unique and distinct sword design. The sword in its Bankai form is characterized by its sleek and elongated shape, with a black blade and a distinctive chain-like extension.

The sword of Tensa Zangetsu has a slender, curved blade that tapers to a sharp point. The blade itself is primarily black in color, giving it a dark and menacing appearance. It lacks a crossguard, and the hilt is wrapped in white cloth, providing a contrast to the black blade.

The most notable feature of Tensa Zangetsu's sword is the long, chain-like blade extension. The chain starts from the base of the hilt and extends several feet, giving the appearance of a flowing chain or a long ribbon. This chain can be manipulated by Ichigo to grant him enhanced maneuverability and aerial mobility.

The design of Tensa Zangetsu's sword is meant to evoke a sense of speed, elegance, and power, reflecting the characteristics and abilities associated with Ichigo's Bankai.