The Pearl Musical Instrument Company is a multinational corporation founded in 1952 and based in Japan with a wide range of products, predominately percussion instruments. Over the years, Pearl has made shells for more than 30 companies. In the 1960s, they ceased making shells for other companies, and began manufacturing drums under their own name and used the Pearl logo for the first time. Their construction technique is known as SST or "Superior Shell Technology." All Pearl drums feature this construction.