Not sold separately, only sold as a pair. Ear piercing steps: Step 1: Disinfect the ear with alcohol cotton. Step 2: Position the device on the desired spot of the ear, pay attention to the grip. Step 3: Press down firmly and decisively. You must be steady, precise, and forceful! Do not hesitate; press all the way through! If you are unsure or uncomfortable, please ask a professional for assistance. Pickup location and time: Only at Kwun Tong MTR station, Monday to Saturday from 18:00 to 19:00. Other time slots are unavailable. Sorry for the inconvenience, thank you for your understanding🙏🏻