The khol is a drum with a clay body, with drumheads at both ends, one far smaller than the other. The drumheads are made of cow skin, and are three-layered and treated with a circle of rice paste, glue, and iron known as sihai.
Professional Dotara is a stringed musical instrument commonly used in Bangladesh and West Bengal. This dotara has five strings. Dotara is a stringed, pluck instrument, played in an open note combination.