Heavy Duty 100% Copper Wire 80℃-105℃ Heat Resistance Wire Gauge:12AWG-16AWG HOW TO CONNECT - Plug and play, quick installation and no tools required. Please Note:The "+/-" mark on solar connector is used to distinguish whether the connector is male or female, not for positive and negative polarity. Due to different product batches, the appearance may be different, which does not affect use. Colour:As Shown Material:Plastic+Metal Size:Length:about 1m Package Contents: 1 * 4-in-1 Solar Panel Connector Extension Cable Splitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.