Wago (100) 221-412 (50) 221-413 (25) 221-415 Lever-Nut Assortment Pack Connect any combination of solid, stranded, and flexible copper wires faster and more reliably Minimize space consumption in the junction box by 40% compared to 222 Series Visually inspect for proper strip length and complete wire insertion through its transparent housing Operate comfortably and with lower operating forces by using familiar orange levers