Promotional Magnets, Rectangle Magnet 4 x 6 - Full Color, Need a way to attract more customers to your business? Then create an eye-catching promotion with our 4 x 6 rectangular magnets! Four color process imprints are available on this item. Magnets offer an economical solution for tradeshow giveaways, promotional mailers and announcements. Approximately 0.020 material thickness and always-in-stock! ... #S419 $0.88/each.