uxcell 20pcs Plastic 3.5mm Audio Stereo Female Coaxial Coax Cable Connector Adapter Color: Black, Silver Tone; Main Material: Metal, Plastic Package Content: 20pcs x 3.5mm Female Audio Connector; Net Weight: 61g Type: Audio Adapter/Converter; Product Name: 3.5mm Female Audio Connector Size: 42 x 10mm/1.7" x 0.4"(L*Max.D); Connector: 3.5mm Female Audio Connector Battery Included: No