Features a softer and less aggressive hub and sheath. Rounded hub provides gentler contact against cheek and gums. No ribs on hub where blood can coagulate. Shorter butt end. Indicating mark on hub for easy identification of bevel position. Round cutting edge protects gum. Double silicone coating reduces pain and tissue trauma. Seals and hubs are color coded. Plastic hub screws on both metric and imperial syringes.