Koshi Guruma is a traditional Japanese judo throw that translates to "hip wheel." It involves using the hips as a pivot point to throw an opponent over the shoulder. This technique is effective for leveraging an opponent's weight and balance, making it a fundamental skill in judo. In executing Koshi Guruma, the judoka (judo practitioner) grips the opponent's collar and uses their hip to lift and rotate them. This throw is often taught to beginners as it emphasizes body movement and balance, essential elements in judo and other martial arts.