Olympic symbols human figures representing the cultural heritage. The first major mascot in the Olympic Games was Misha in the 1980 Summer Olympics in Moscow. Misha was used extensively during the opening and closing ceremonies, had a TV animated cartoon and appeared on several merchandise products. Nowadays, most of the merchandise aimed at young people focuses on the mascots, rather than the Olympic flag or organization logos. The Olympic movement is very protective of its symbols; as many jurisdictions have given the movement exclusive trademark rights to any interlocking arrangement of five rings, and usage of the word "Olympic". The rings are
Iron rings Iron rings Iron rings are heavy metal rings used in martial arts for various training purposes. Metal rings have a long history of being used in Yau Kung Mun, Hung Gar, and other styles for weight training, to harden the muscle, skin, or bone, or strengthen the arms and fists. Many different types of rings are available. The "Chi Sau Ring" is used for conditioning the body in many stances, and exercises. Four-inch-diameter () "Chi Sau Rings" weigh 600 g; iron rings weigh 800 g. Some iron rings are sold in sets, such as two small and two large rings.