Remo-BA-0110-00 10-Inch Vellum

The coated drumhead is slightly warmer than clear heads. They’re known for their bright warm tones, resonance, and sustain. Coated heads are best known as batter and resonant heads warming up the sound of tom-toms and bass drums.
The Coated Ambassador® heads are medium-weight heads made with a coated single-ply 10-mil Mylar® film to produce a warm open, bright, and resonant sound with a warm attack. Coated Ambassador® heads are the standard of the industry for both live and recording situations.

https://www.oosthavens.co.za/product-category/drums-percussion/vellums/