Pelican-Hardigg Select Set Single Lid Cases come in 4 Configurations, Empty with or without wheels and foam filled with 2" 2 lb. Polyethylene black foam with or without wheels.(depending on model) Standard features include, Comfort grip handles, positive anti-shear interlocks which prevent lid separation after impact, reinforced corners and edges for additional impact protection, molded-in ribs and corrugations for secure, non-slip stacking, columnar strength and added protection. They also include recessed hardware band an airtight lid gasket and PRV (pressure relief valve). Color: Black