Customized Magnets, Square Magnet 3 x 3 - Full Color Process, Create an eye catching promotion while attracting customers to your business with our 3 x 3 square magnets! Four color process imprints are available on this item. Magnets offer an economical and compact solution for tradeshow giveaways, promotional mailers and Save the Date notifications. Approximately 0.020 material thickness and always-in-stock! ... #S461 $0.68/each.