The cool way to get your message on people's desks and in their hands, The Original Sonic Rocks (R) is an attention getting, unique stress reliever. Sonic Rocks (R) gunmetal colored stress rocks for stress relief come in a metal case with fitted insert and gift box. The winner of the 2007 Most Fun/Coolest Product in the Advantages New Product Showcase at the ASI Show Orlando comes with a lifetime guarantee by this QCA certified supplier. The rocks measure 1 3/4" long and the case measures 2 1/2" square. Try something different for your next advertising campaign!