Thank new and loyal customers alike for partnering with your business with this rainbow stress ball! Measuring 2.5- this stress ball has a rainbow design and can be purchased as a blank product. You can also customize it with a silkscreened imprint of your companys name, logo and advertising message to create a marketing tool that everyone will Its a great item to give away for trade shows, expos, conferences and any other promotional events where you want your brand to stand out! Measuring 1.75 * 1.75 * 4 inches, this custom cute mini energy saving lightbulb stress ball.