Infinity is non-absorbent, so today's cereal won't smell like yesterday's chili. Made of 100% recyclable, BPA-free polypropylene that won't absorb odors or leak chemicals into your food. Infinity pieces remain strong when hot or cold and are so light that they actually remain buoyant when filled with water. It's even dishwasher safe and actually becomes more stain-resistant with every wash. 6" diameter. 12 oz. Weighs 2.3 oz.