Item Name: 10Pcs 3.5mm Female Connector 3 Pin Headphone Jack Socket Mono Channel PJ-301M. Product DescriptionFeatures:Made of plastic and metal material, high quality and durableAn ideal item to replace the broken onesApplication to Media Player, MP3/MP4 Player, Audio-Video Equipment, Mobile Phones, PDA, Car Audio etc.Specifications:Main Material: Metal+PlasticColor: Black+SilverModel: PJ-301MInner Diameter: 3.5mmOverall Size: 2x1.1x1cm/0.79x0.43x0.39"Quantity: 10 Pcs/1 SetNote:Please allow 0-1mm error due to manual measurement.