12-10 AWG Vinyl Insulated Butt Splice Connectors - 30 Count Vinyl Butt Splice Connectors are made of insulating vinyl. Stripped wires are inserted from each end and "butt" in the center. A crimp at each end secures the connection. Electro tin plated copper, vinyl (PVC). 300V, 75 degrees C. FEATURES: STYLE: Butt Splice Connector MATERIAL: Vinyl QUANTITY: 30 Count WIRE SIZE: 12-10 LENGTH: 1.004