Great way to stop burning your fingers taking that nice hot bowl of food out of the microwave. The two set piece includes a bowl holder and a wipe-able lined lid. Each holder is made with 100% cotton fabric and microwave safe batting. Machine washable, air dry, if needed. Small will fit a fairly standard size cereal bowl. Medium will fit an average serving bowl, and a Large fits a large serving bowl. Check the picture of serving bowls as a reference.