GLASS COUNTER SAVERS are great for food preparation, cutting and serving. MADE OF HIGH-QUALITY 3 MM TEMPERED GLASS that is safe for temperatures up to 400 degrees F or 204 degrees C. CARE: 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.