【Compatibility 】 These ear tips compatible with Powerbeats Pro, compatible with Powerbeats High Performance, compatible with Beats Flex, compatible with Beats X, compatible with Beats Fit Pro, compatible with Beats Studio Buds. 【 More Size Options, Better Fit 】 Small Medium Large and Double 4 different sizes, complies comfortably with your individual ear shape. Fit in the charging case, no need to remove the foam when you put earphone into the charging case. 【 Nice Sound Quality 】 These ear tips can offer a good seal to reduce some of the outside noise and allow you to focus on your audio, provide a better sound listening experience. 【 Material 】 Made of soft flexible premium silicone, provide more noise isolation, in-ear stability and a lasting comfort. And They are Water-washable, durable, flexible, removable and replaceable. 【 Package include 】 8 pairs replacement ear tips, tips only, earphone not include