The OXO 3 piece Mixing Bowl Set is made of durable BPA free plastic with rubber bases.

Other Features Include:
Soft, comfortable, non-slip handle.
Non-slip bottom stabilizes bowl while mixing.
Wide lip and spout for easy pouring.
1.5qt size is convenient for whisking eggs and salad dressings, 3qt size is convenient for mixing batter, dough and marinades, 5qt size is ideal for doubling recipes and mixing larger quantities.