It may have traditional cotton rope lacing, screw-turnbuckle tensioning or both combined: in the first case steel rings are used for tuning or pegs a twisted inside the laces. The dholak is mainly a folk instrument, lacking the exact tuning and playing techniques of the tabla or the pakhawaj. The drum is pitched, depending on size, with an interval of perhaps a perfect fourth or perfect fifth between the two heads. It is related to the larger Punjabi dhol and the smaller dholki.