Specifically designed for wet scrubbing – An indispensable tool that bridges the gap between carbon fiber dry brushes and record cleaning machines (RCMs). Cleans where it really matters – Ultra-fine (50 micron) bristles specifically designed to fit inside record grooves. Stands up to repeated use – Chemically inert nylon bristles safe for use with all cleaning fluids. Awesome cleaning power – High-density bristle clusters & high bristle count scrubs record grooves with authority and power.