Remo Encore 20-Inch Vellum

The Ambassador Coated is the most popular drumhead in the world, featuring the perfect combination of warm, open tones with bright attack and controlled sustain. Constructed with 1-ply 10-mil Coated film, Ambassador Coated drumheads are the industry standard for all applications.

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