100pcs Crimp B Wire Gel Filled Bean Type Connectors Premium quality B-Wire connectors are manufactured from high quality material. solid dependable splice in wires ranging from 18 to 30 gauge. feature insulation piercing internal teeth, soft (easy to squeeze) crimp, rugged protective outer covering and are filled with a corrosion resistant silicone gel. Blue Color Coding for Identification Non-hardening Gel Moisture Barrier