The Gradational Dissection of Human Upper Limb Model (MT-051A) is a detailed anatomical teaching model designed to demonstrate the layered structure of the human upper limb. This model shows the progressive dissection of muscles, nerves, blood vessels, and skeletal structures, allowing students to understand the anatomy of the arm in a clear and systematic way. Manufactured in natural size (200 × 130 × 760 mm), the model provides an accurate representation of the human upper limb. It is widely used in medical colleges, nursing institutes, anatomy laboratories, and educational institutions for teaching human anatomy, physiology, and medical training.