The Powerstroke 3 Coated Bottom Black Dot features midrange and low- end resonant tones with increased durability. Inspired by legendary drummer Steve Smith, the Powerstroke 3 Black Dot is constructed with 10-mil Coated film and a 10-mil inlay at the outer edge of the head to subtly dampen unwanted overtones. The added 5-mil Black Dot provides deeper low tones and focused attack.