I purchased this 3 years ago and used it for about 2 years. I mainly used the cup at the bottom, so the lid and mouthpiece are relatively clean. I washed it in the dishwasher. I'm listing it because I'd like to give it away before disposing of it. This is only for shipping and fees, so I cannot offer discounts. However, I can offer a significant discount if you purchase multiple items. Product Overview Spill-proof design: This training cup is designed to be spill-proof even when turned upside down, making it ideal for practicing drinking from a cup. 360-degree drinking: The liquid only comes out where the lips are pressed, so you can drink from anywhere, just like a regular cup. Easy-to-hold handles: It comes with handles that even small children's hands can grip securely, and can be used from 6 months old. Hygienic lid included: A convenient and hygienic lid is included for outings, providing peace of mind when carrying it. Dishwasher safe for easy cleaning: It can be washed in the dishwasher.