Enhanced body technology Micro Filament Line. Power Pro will not cut guides, is smoother casting, ultra sensitive, super strong with minimal stretch, and has better knot performance. No more line memory. Very thin diameter. 30 pound has 8 pound test diameter; 50 has 12 pound; 20 has 6 pound; and 15 has 4 pound test diameter. Moss Green color. 150 yard filler spool.