【Sufficient Quantity】: The set contains 12 identical small stainless steel cups. The sufficient quantity is enough for general household use. They are sturdy and drop-resistant, making them very suitable for children. The mouth of the cup is wide and smooth. You don't have to worry about scratching your child's hand. 【BPA-Free Stainless Steel Cup】: The stainless steel cup set is made of 304 food-grade stainless steel, polished inside and outside, BPA-free, non-toxic and tasteless. The drinking cups do not contain any harmful chemicals, suitable for them and their children! Stainless steel travel cups are the perfect choice for the health of you and your family. 【Stackable and Does Not Take Up Space】: The stainless steel cups are stackable, easy to store and do not take up space. 30 ml per cup, the mouth diameter is 3.6 cm, the base diameter is 2.5 cm and the height is about 4 cm. 【Suitable for all occasions】: camping, backpacking, traveling, hiking, on the beach, picnic, parties and