NPB-40 Lite 40, 60, 80, 100
NPB-45 Medium 45, 65, 85, 105
NPB-50 Heavy 50, 70, 90, 110
NPB5-40 Lite 5's 40, 60, 80, 100, 120
NPB5-45 Medium 5's 45, 65, 85, 105, 125
NPB6-30/120 Lite 6's 30, 40, 60, 80, 100, 120
NPB6-30 Medium 6's 30, 45, 65, 85, 105, 125