100% biodegradable and 100% compostable Biobags® are made from non-genetically modified corn. BioBags® feel like plastic but are actually corn based. No polyethelene is used in the production of this bag. In addition to being GMO-free, Biobags® are certified for use in organic agriculture. Biobags® are stable on the shelf yet will biodegrade quickly when exposed to the elements and micro-organisms leaving no harmful residues behind. Biobags® are also great for storing fruits and vegetables since they "breathe" allowing heat and moisture to evaporate through the bag while keeping what's inside fresher longer than conventional plastic bags. When used as a food waste collector in a compost pail, Biobags® will biodegrade as naturally as the food scraps leaving no harmful residue. The Cat Pan bag is approximately 31" x 15" in a box of 10. The Dog Waste bags are 11.5" x 7.8" in a box of 50. The Large Dog Waste bags are 9.8" x 13.8" in a box of 35. The Food Waste bags are 3 gallon bags and are 17" x 18" in a box of 25. The Tall Kitchen bags are 13 gallon bags measuring 24" x 28" in a box of 12. The Lawn & Leaf bags are 33 gallon bags measuring 32.5" x 39" in a box of 5.