Aquila AQ-UBASS-RUMBLER Silver Rumblers for U-Bass

KALA UBASS Aquila Silver Rumblers Ubass Strings Features KALA U-BASS and Aquila Corde team up to bring you SILVER RUMBLERS Using Aquila's patented technology and materials, SILVER RUMBLERS are a special blend of Aquila's Nyglut compound and calcium carbonate Provides increased density, stability and, most importantly, the ability to resonate tone at very low frequencies