zigzag seamless wave lines set. wavy wiggly black horizontal line with edge. frame underlines stroke.

abstract amplitude background billow black curve curvy decor decorative design distortion divider edge element equalizer fabric flex frame graphic horizontal illustration line lines ornament parallel pattern seamless set shape simple sine snaky squiggle squiggly texture undulate vector water wave waveform wavelike wavy white wiggle wiggly winding wriggle writhing zigzag