No twist connection reduces repetitive motion fatigue|Clear shell gives visual verification of connection|600 VAC maximum building wire, 1000 VAC maximum signs and lighting fixtures|Tough, flame-retardant shell rated at 105 deg C|Electrolytic tin plated copper bus system|Stainless steel inserts restrict pull-out|Color coded for easy identification|Ground rating eliminates need for special "ground" connector|Simply push the wire in - the low insertion force makes it easy|The ergonomic design is easier to grip which means more comfortable push-in connections|The compact size makes for easy installations in even the tightest spots or shallow boxes, and the tough, flame-retardant shell stands up to the harshest environments