Silicone. BPA free. Size: 11x14.6x11cm. With the OrangieFly training cup, your baby will be in good company on his adventure of learning to drink on his own with a grown-up cup. This cup with handles is ideal for their early development. Baby will chew on the soft silicone base to get the water out and learn to sip like an older child. Also, if you put the cup with the silicone in the freezer, it will help to soothe his gums when his teeth come in.