In designing the Grover Pro Percussion T2/HS Hybrid Tambourine the goal was to create an instrument with resounding energy at the top and crisp articulation at the softest dynamic levels. Grover achieved this by mounting their classic German Silver tambourine jingles on the top row of slots and their newer, Heat-Treated Silver jingles on the bottom row. The excellent articulation and vintage nuances of the heat-treated jingles combine with the full, clean sound of the German silver jingles to create a tambourine that works for just about every application.