Polar Camel sippy cups are 10oz. double wall insulated powder coated cups featuring removable handles, a silicone boot, and spill proof lid. The screw on lid features a hard plastic spout with a rubber leak proof valve. The cup can be used with or without the heavy-duty plastic handles that attach to the lid. Polar Camels are made from 18/8 gauge stainless steel. They offer plenty of space for personalization by laser engraving, leaving an elegant stainless steel show-through imprint. Individually packaged.