Evans-B13G1 13-Inch Vellum

With a single ply of 10mil film that blends bright tone with greater sustain and sensitivity, Evans Clear G1 drumheads set the standard for an open, expressive sound. Tune it low to get a cavernous rumble that emphasizes the natural sound of the shell. This drumhead incorporates Evans Level 360 Technology for ease of tuning, extended pitch range, and optimum quality of sound.https://www.oosthavens.co.za/product-category/drums-percussion/vellums/