Made out of 60-70% Bamboo Fiber Powder- a renewable resource since bamboo grows 8 feet per day Bowls are biodegradable to help reduce the carbon footprint in landfills 0.25 qt, 0.5 qt, 1 qt, 2 qt, 3 qt, and 4.5 qt sizes Beautiful natural bamboo color is free of dyes Dishwasher Safe