Traditional djembes are roped tuned and that tuning method requires considerable experience. Pearl’s Top Tuned djembes make tuning your drum easy with a hoop and lug system that works like other acoustic drums. The tuning wrench is included with the drum. The Top Tuned djembes feature a synthetic head designed to resist detuning from moisture and temperature changes. The bottom edge of the drum is protected by a rubber rim. Care Guide: Pearl Top Tune Djembe drums feature a synthetic shell that is subject to react to extremely hot conditions. Refrain from prolonged exposure to temperatures at or above 122F / 50C. Failure to do so may result in damage to the instrument. For the utmost care, we recommend a moderate stable climate suitable for humans.