These are triangular pot holders that can be used with Staub and Le Creuset pots. They are convenient for when you want to grab a plate warmed in the microwave, etc. Size: Length 9.5 cm, Width 9.5 cm There may be a few millimeters of error. Made of cotton, the lining is quilted. Quilt batting is inserted inside. As these are handmade, there may be some misalignment or distortion. Please refrain from purchasing if you are looking for perfection.