👉 A corner weapon, often referred to as a corner guard or corner shield in some contexts, is a defensive tool used primarily in martial arts, particularly in disciplines like Judo, Brazilian Jiu-Jitsu, and Muay Thai. It is a flat, rectangular piece of equipment placed at the corners of a training mat or ring, typically made from durable materials like foam or rubber. The corner weapon serves as a barrier to protect the user's back, chest, and head from incoming strikes or grabs. It can be used to block, deflect, or redirect attacks, providing a crucial layer of defense during sparring and training. Its compact size makes it versatile for use in confined spaces and allows practitioners to practice defensive techniques effectively.