The used Mosky Audio ROLLER COMPRESSOR is in excellent condition and delivers smooth, studio-quality compression in a compact pedal. Featuring simple controls for Sustain, Level, and Attack, it provides precise tone shaping for guitarists and bassists alike. Based on classic compressor circuit designs, this pedal operates on 9V DC and offers true bypass switching for clean signal retention. Ideal for tightening up your tone or adding sustain without sacrificing clarity.