COOSKIN Universal Soft Silicone Earhooks Audio Removable Sports Earhook for Earbuds (Black) Ergonomically Designed Ear Hook, adjustable for a custom fit Compatible with most in ear Earphones with round wire in diameter: 1.5mm-2mm Made from High Quality soft comfortable silicone, durable ,flexible and removable Stabilizers to keep your earphones securely locked around your ear, for greater stability during exercise and other activities Snap easily into place.Simply wrap around behind the ear.