Place of Origin: Jiangsu, China Brand Name: YINYUN Model Number: 3.5mm White Black Raw Materials Round Flat Elastic Earloop Instrument classification: Class I Product name: 3.5mm White Black Raw Materials Round Flat Elastic Earloop Material: Non-woven Usage: Raw Material Feature: Eco-friendly Application: Medical Consumables Size: 3.5mm Color: White/Black Packing: PE Bag Properties: Medical Polymer Materials & Products