Bass Drum O’s HBL4 Black 4″ Bass Drum Port Cheapest Pice

Replicating the original bass drum snap-on design reinforcement system, Bass Drum O’s add durability and pizzaz to ported bass drum heads. Simply snap the O on the port hole to give a finished appearance to your bass drum.  When it comes to venting and porting, Drum Os gives you plenty of options. Its easy to get creative with Drum Os because there are endless design possibilities. Drum O’s now come in 2, 4 & 6-inch diameters! Also each size is available in 8 great colors, including Black, White, Chrome & Brass, in addition, there are 4 new Chrome colors Red, Blue, Green & Purple.

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