The Expandable Trivet by Totally Bamboo is the perfect all-purpose trivet which is great for everything from large casserole dishes to small serving plates. Trivet is easy to store and easy to clean; simply wipe clean with dishrag using warm soapy water. Made of durable, organically grown bamboo. Distinctively attractive, super strong, and totally green. Bamboo is the perfect material because it is 16% harder than maple, it's naturally antimicrobial.