Barocook Rectangular Flameless Cookware System Available in four different sizes: Small 10 oz., Medium 28 oz., Large 33 oz., X-Large 40 oz. Includes stainless steel inner container, plastic outer container, silicone lid and a 50g heat pack Flameless, water-activated, heating packs achieves heat up to 203 Fahrenheit Eco-friendly. Heating packs can be disposed of like other environmentally friendly trash, Non-Toxic Flameless heat source made of Quick Lime Flameless heating packs can be purchased individually or in packs of 10. Caution: Contents will become very hot while using the Barocook cooking system. Please read the instructions first before using.