New School of Fish Tempered Glass 10.5" Serving Bowls for your boat or home. This product is break resistant, dishwasher safe, microwave safe and won't scratch with a knife.  Each School of Fish Serving Bowl is heated to 700 degrees F during the manufacturing process to make them very durable.  If broken, they don't shatter into hundreds of small glass shards.  This product does not have a non-skid feature.