This NUK Active Cup is a perfect addition to your baby's collection of portable drinkware. With a size of 10 oz., it is ideal for on-the-go use. The cup is made of HDPE (High-Density Polyethylene) material, which ensures its durability. The pack comes with 2 musical instruments, making it a fun and interactive addition to your baby's playtime. This cup is suitable for babies of all ages and is perfect for use at home, in the office, or on outdoor adventures.