About this item SOUND QUALITY ENHANCEMENT: Passive noise reduction design on the Earbud Tips improves the bass significantly. EASY TO USE: These earbud covers are designed to perfectly fit various earbuds, with a simple design that allows for quick application and removal. COMFORTABLE: Made from premium silicone, ensuring long-lasting comfort for your ears, great for running, cycling, working out at the gym, and much more. EXTRA SILICONE POUCH GIFT: A practical solution to the limitation of certain charging case designs. Dimensions: 3.27 x 2.8 x 0.75 inches.