This marketing tool is sure to pass your promotional test! This custom white flexible magnet stress test with rounded corners has a thickness of 17 mil. This non-toxic, USA made indoor magnet features a stress-test indicator; the location and related copy is your choice. Customize this item for a fun way to increase brand recognition. Will accept ball point pens or any permanent marker. Stress your brand to potential clients using this giveaway! Stress test includes 5/8" circle or 9/16"x17/32" heart indicator attached to magnet.