Kkwaenggwari is a traditional Korean percussion instrument, resembling a small gong. It is typically made of brass and produces a bright, sharp sound when struck with a mallet. Kkwaenggwari is often used in various forms of Korean music, including folk and traditional performances, to provide rhythm and enhance the overall sound. This instrument is commonly associated with samulnori, a genre of Korean music that features four traditional instruments. Kkwaenggwari plays a crucial role in maintaining the tempo and adding a lively element to the performance, making it an essential part of Korean cultural heritage.