This personal project involved designing and 3D printing a hand wrap roller, which was later commercialized in local martial arts gyms. The roller simplifies and speeds up the process of rolling hand wraps, a common accessory for fighters practicing boxing, Muay Thai, kickboxing, and similar combat sports. The product was designed entirely from scratch using Fusion 360, sliced with Ultimaker Cura, and printed on an Ender 3 3D printer. The final assembly involved gluing the printed parts, resulting in a functional and practical tool. This innovative solution provides convenience for fighters and has been well-received in its market.