Everyone will be forgetting their worries when you place one of these groovy giveaways into their hands! Measuring 2.5" in diameter, these color-changing "mood" stress balls react to the warmth of your hand. A great promotion for any company or organization, each ball can be customized with a brand name, logo or message. This product is not intended for use by children or pets. It may present a choking hazard to children under 3 years of age.