20PCS! Ring Ground Insulated Wire Connector Electrical Crimp Terminal 18-22AWG Suits cable/ wire sizes: 0.5-1.5mm2 18-22 AWG Comply with all relevant European standards Allows visual inspection, prevents corrosion, and provided a waterproof seal Can be ideal used in marine and automobile applications For best results use a hot air gun until it reduces in size and the adhesive flows, filling gaps within the terminal