I purchased this potty training seat from SHEIN. I bought it in case of emergencies when we're out and about. I tried placing it on the toilet once, then stored it in the car. My son prefers the adult-sized toilet, so we haven't used this. Therefore, I'm selling it. Since he hasn't actually used it for going to the bathroom, it's considered unused. However, I did place it on the toilet once, so I will disinfect it with alcohol before shipping. Please consider purchasing if you don't mind the minor details.