- 100% silicone - Bone shape for to wind the earphone cable easily - Eco-friendly, non-toxic - 100% pure silicone, eco-friendly, non-toxic, no smell- Adjust your earphone cable freely and keep it in order- Portable and covenient to take with your earphone- Easy to clean, washable and durable- Open to customize your favorable style and size- Sophisticated manufacturing equipment and process ...