Product Name: UHF Double Female Adapter; Color: Silver Tone Material: Metal Dimension: 27 x 15mm/1.1" x 0.6" (L*D) Weight: 34g Package: 2 x UHF Double Female Adapter S0-239 UHF female connector. It is used to connect two PL-259 connectors together. Note: Light and different displays may cause differences in the color of the product. The picture is slightly different from the real thing. The allowable measurement error is ±1-3 cm.