Custom Dishware, Wheat Straw Bento Box - Eco-friendly & Microwave Safe, Eco-friendly bamboo lid. The dual lunch compartments stack neatly and are secured with an elastic strap. Each compartment comes with its own plastic lid. Included are a plastic knife, fork and spoon. The compartments are constructed of 30% wheat straw and 70% plastic. Each compartment holds 20oz. Microwave and dishwasher safe. ... #H458 $7.04/each.