Hold your ear tightly. Reject dropping off during running , jogging, cycling and gym ect. Ehance Bass sound.Passive noise reduction design on the Earbud Tips, improves the bass for your Apple AirPods. High quality material, it's made by premium silicone. Ensure long-lasting comfortable. reduce the pain of long listening. Easy installment. There are L/R mark on the eartips. easy to installment . no need extra tool.please check the video. There are 3 pairs with SML size in the packing. you can select the right size for your ear. Note: the earbuds just for show . doesn't include. And it can't put into the charging case. Hold your ear tightly. Reject dropping off during running , jogging, cycling and gym ect. Ehance Bass sound.Passive noise reduction design on the Earbud Tips, improves the bass for your Apple AirPods. High quality material, it's made by premium silicone. Ensure long-lasting comfortable. reduce the pain of long listening. There are 3 pairs with SML size in the packing. you can select the right size for your ear. Note: the earbuds just for show . doesn't include. And it can't put into the charging case.