Fold-Pak is the largest, most experienced manufacturer of pails for the food service industry, our name is synonymous with high quality and reliability. We use only top-quality SBS paperboard, with a poly coating on the inside to ensure leak resistance and to keep your product fresh and ready to eat. SMARTSERV carryout containers are an innovative approach to carryout. The patented cup-like structure gives operators a takeout solution that can be used for many different applications. It is cost effective, functional, and made from a sustainable natural resource. Leak resistant, holds all types of foods, sauces, and gravies. Moderate Heat Lamp Tolerant. Flaps open wide to allow free access to food. Retains heat and vents steam, keeping food fresh Height = 3 3/4" Bottom = 3 5/8" Top = 4 x 3 1/2"