Wouldn't you like it if you had recurring advertising for your business at a low cost? Well with these rectangular magnets you can. Our full color magnets measure approximately .020 mm thick. Put your company message or logo in full color on the front and viola - instant advertising for your business! Great for delivery businesses to let your customers know how to reach you. 1 1/2" x 3". This American-made product is not suitable for outdoor use.