TIGER Tiger Part Code: MMM1429 Part Name: MMN-Z10EK I purchased a spare water bottle cap for my child from the Tiger website. I've been storing it, but we no longer use the water bottle. The cap is black with a blue top. You can check which water bottles it's compatible with on the Tiger website. For reference, my water bottle is MMN-E100/1.0ℓ. Due to its thickness, shipping will be via Yu-Packet Plus. It's unused, but has been stored at home. Please consider this with your understanding. Feel free to comment with any questions.