I practiced with it once or twice, but my child couldn't use it well, and we haven't used it since. It's a beautiful item, but since it's been stored by a private individual, please refrain from purchasing if you are sensitive to such things. [Product Information] Brand: Munchkin Material: Cap: Polyethylene // Valve: Silicone // Lid: Polypropylene // Packing: Silicone // Cup: Polypropylene Color: Giraffe Capacity: 177 milliliters Features: Microwave safe