Glass counter savers are great for food preparation, cutting and serving. Made of high quality 3mm tempered glass. Is safe for temperatures up to 400 degrees F or 204 degrees C. Glass Counter Saver may be cleaned with mild detergent and water. May be placed in the dishwasher. Do not place on or over a hot burner. Perfect gift for your friends and family, a hostess gift or to keep for yourself. MEASURES 10" L x 8" W x .125" H or 25 cm x 20 cm x .3 cm.