Spend mealtime with California's cuddly critters™ Take baby otters to lunch today with the Baby Otter Sippy Cup. The BPA-free sippy lid is simple to remove when kids are ready to drink from a cup or to use as a snack holder. Size (inches): 4.00 dia. x 2.50 h. Holds 6 fluid ounces. Durable melamine and polypropylene. Lead-free. BPA-free. Phthalate-free. Non-toxic. Gift box made of recycled materials. Dishwasher safe. Hand wash for best results. Do not microwave. Melamine, while more durable than ceramic, is not unbreakable.