17.8cm x 20.3cm . Click. You know it's closed! The bag the whole family can close. Easy to use. Just slide the bag closed. Secure. Hefty OneZip bags close tight first time everytime. Great for food and household storage. Pantry, refrigerator, freezer, travel (Quart size meets airport security guidelines), cosmetics. Ease-of-use commendation by Arthritis Foundation. Made in the USA.