Specification:2 pairs 2 pin male + female IP67 metal nut connectors with 0.75mm²/20AWG wire Big size Length: Male extension cable 7.87in/20cm, Female extension cable 7.87in/20cm Total 15.7in/40cm/pair Male and Female Ends Push In 22mm nut.Please note: make sure that the connector can fit your original connector. Connectors from different manufacturers cannot be used together.Please use BTF-LIGHTING connectors, extension cords, tee connectors, and splitters connector. Matching 2 pin big size IP67 extension cable metal nut connectors: Search this ASIN on B09K5LRDJZ, there are 3.2 ft 6.4 ft 9.6 ft extension cable metal nut connectors. The length of the wire can be increased, thus making it more versatile. 1 to 2 Splitter Y metal nut connector:B0CTKB59GP, 1 to 3 Splitter metal nut connector:B0CJY3R27P. High quality material: The pigtails are pre-tinned ,making soldering easy.No loose, reliable and lightweight. Material: Metal nut+Copper wire,eliable , no loose, lightweight and