silicone earphone bobbin winder: 1.100% pure silicone 2.any colors 3.eco-friendly 4.ODM and OEM are welcome 1)Silicone Earplug Cover with Noise-free Workplace Hearing Protection, 2)Compatible with iPod and various earphone 3)Color available: Mixed, glow and multicolor 4)Design available: Great noise-free, smooth surfaced touching 5)It can also avoid scraping from your ear Tone up bourdon 6) ...