ITEM NAME:5Set Copper Plated Hearphone Earphone MMCX Connector Screws Nut Universal Description: Suitable for headphones with a rear inner diameter of 6.2mm or more. Pure copper plated material, solid and durable, will not affect the sound quality of music. Easy to install and easy to disassemble. The project is 100% as shown. 100% brand new, high quality. Specification: Material: pure copper plated Size: 10x4x4 mm / 0.39x0.15x0.15 inch Package Includes: 5 Pieces socket 5 Pieces screw ring Note: Two sets of ear shells are required, please pay attention to purchase. SKU: DMO0017141919479860.Pure copper plated material, solid and durable, will not affect the sound quality of music. Material: pure copper plated. SKU: DMO0017141919479860. 5 Pieces screw ring.