DescriptionThis is a pair of premium memory earphone tips. The memory provides all-day comfort, while eliminating in-ear irritation and fatigue often associated with stock silicone tips.Sound isolating design to maximize the noise reduction for high-intensity listening. Good choice for you.Features- Color: Black. - Material: Memory foam. - T400: Inner diameter 4.9 MM, Outside diameter: medium (12 mm). - The memory provides all-day comfort, while eliminating in-ear irritation and fatigue often associated with stock silicone tips. - Sound isolating design to maximize the noise reduction for high-intensity listening. - The tips create an optimal seal and channel sound directly into the ear canal, transforming your listening experience from ordinary to extraordinary. - Made by memory foam, it is durable and practical.