What is this?The Earpiece can be worn while wearing a hat, helmet, or headset. Suitable for running, riding, security working, etc. Fit most earpiece Coil Tube Audio Kits, either Left or Right Ear, you can pick your preference. Doesn't block hearing.What will I get?Color: WhiteMaterial: SiliconeOverall Size: 25mm x 15mm/1 inch x 0.6 inch(L*W)In the package of: 2pcs x Silicone Fin EarbudsAre there any advantages of the product?The Fin Earbuds are Made of soft silicone, good Stretching, not easily faded, and long periods of time. comfortable enough to forget it's there.How to use it?With the support of the ridge, These fin tips and wing tips can firmly grip your ear. Even during exercise, your Earbuds will not fall off. Really soft, comfortable, and firm.What should I notice?There may be a slight color difference between the real object and the picture. For manual measurement, please allow a slight dimensional error of the item.