Evans Black Chrome drumheads are ideal for drummers who hit hard, play fast, and desire a punchy tone. Featuring a two-ply construction with a ply of 7mil optically clear film over a 7.5mil black film that shortens sustain and provides an accentuated mid-to-low frequency response, this drumhead combines durability with a sleek mirror-like appearance and robust tone. The Black Chrome 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/