Bass Drum Os

Bass Drum Os specialises in sound-hole rings and related accessories for drumheads. Its range includes bass drum port rings, smaller drum and tom ports, and a sound-hole cutter, placing it in the drum-accessory market rather than the market for complete instruments.

The brand is known for sound-hole rings offered in different sizes, colours and finishes. Products listed by MyGear include 2-inch rings in white and blue, larger rings in black and purple, and chrome and brass options. The range also includes 2-inch Brass Drum O's/Tom Ports supplied in packs of two.

MyGear currently lists 38 products in stock at partner retailers, with prices ranging from £11 to £94. This positions the listed range as lower-cost accessories for adapting or maintaining an existing drum setup, rather than major equipment purchases.