These are triangular pot holders that can be used with Staub and Le Creuset pots. Convenient for when you want to grab a hot plate warmed in the microwave, etc. Size: Length 9.5cm, Width 9.5cm 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.