Bass Drum O's Ring 5"

The system is a flat female ring that sticks to the inside of the head and a male ring that locks over it from the front, each with its own adhesive gasket. You stick the flat ring on first, cut the hole with a sharp razor blade using the inside edge of that ring as the guide, then fit the male ring. Bass Drum O's also makes a Hole Cutter for round port holes in resonant heads. The brand makes rings in 2in, 4in, 5in and 6in sizes, each in eight colours.

Fitting notes

• Leave at least 2in between the ring and the edge of the bass drum rim. Bass Drum O's suggests placing it away from the centre of the head for as much front-head tone as possible
• Clean the head with the supplied alcohol swab, dry it, and avoid touching the adhesive
• Cut slowly at a slight 30-degree angle with an X-Acto-type razor blade, using the inside edge of the flat ring as the guide, and take care not to cut the plastic. Do not rip or force the hole
• On a coated or painted head, remove the coating at least 3/8in from the edge of the hole before fitting the male ring

What it fits

• Bass drum resonant heads with a port cut to suit a 5in ring

Specifications

• Size: 5in
• Material: plastic
• Construction: two-part ring (outer male, inner female), each with an adhesive gasket

In the box

• Male (front) ring with adhesive gasket
• Female (flat) ring with adhesive gasket
• Alcohol swab