20xRed Insulated Straight Wire Butt Connector Electrical Crimp Terminal 18-22AWG Suits cable/ wire sizes: 0.5-1.5mm2 18-22 AWG Guaranteed to hold the strong crimps Dual-walled design, polyolefin tubing in outside and hot melt adhesive in inside Allows visual inspection, prevents corrosion, and provided a waterproof seal For best results use a hot air gun until it reduces in size and the adhesive flows, filling gaps within the terminal