Meinl Alpine Series 10" Synthetic Djembe, SimbraMechanical tuning system Meinl Percussion Djembe's Mechanical tuning system revolutionizes hand drums. Effortlessly adjust drumhead tension with the integrated mechanical tuning key, achieving precise pitch and sound. Durable and reliable, this user friendly system preserves tuning for extended periods. Meinl's innovative approach blends tradition with innovation, providing both seasoned percussionists and beginners an elevated playing experience.