Shop Nilight 100PCS Non Insulated Butt Connectors Kit AWG 24-8 Uninsulated Crimp Butt Connectors Pure Copper Tin Coated Crimp Terminals for Motorcycle Motorbike Car Truck Boats in high quality, support 2 year warranty. Butt Splice Wire Connectors are made of T2 low resistivity copper, purple copper with strong durability,99.9 percent purple copper structure achieved excellent conductivity. With special matte tinned process, provide you a higher degree of conductivity and more corrosion resistance.