Case Star Rectangle-Shaped Hard EVA Case Bag and Black Color Climbing Carabiner for FiiO E6 Headphone Amplifier Earphone Headset / MP3 / MP4 Bluetooth Earphone Earbuds Material: EVA & Nylon Dimension: 4.5 Rigid EVA shell with braided cloth covered sides prevents scuffing and crushing; Cloth lined interior to safeguard your earphones. Interior pocket secures item from movement. Package includes an earphone case and an aluminum carabiner.