As an alternative to plastic dishes, these food bowls are made from non-toxic silicone. The lids are leak-proof, with an opening in the lid allowing the steam of hot food to escape. Fitting perfectly in the palm of the hand, the curved form invites users to hold the bowl in their hand while eating. After use, the bowls can be easily cleaned and stacked for space-saving storage. The dishwasher-safe containers allow temperatures from 250 degrees centigrade to -30 degrees centigrade.