uxcell 30pcs 5.5mm x 2.1mm Plastic Female DC Power Inline Jack Socket Converter Connector Country of Manufacture: CHINA; Material: Plastic, Metal Net Weight: 90g; Package Content: 30 x DC Power Connector Diameter: 5.5mm x 2.1mm Main Color: Black, Silver Tone Dimension: 41 x 10mm/1.6" x 0.4"(L*Max.D)