Up to four players push their colored marbles into the 6x6 grid board in order to get four-in-a-row first. Contents: Matt black plastic 3D game board 36 bright fluorescent balls Drawstring bag for storing game pieces Product Dimensions: 2 x 10 x 10 inches Item Weight: 2 pounds Released: 01 October 2010 ASIN: B00421BD7W Item model number: 2100104 From the Manufacturer: "When push comes to shove be the first to get four colorful marbles in a row. Sounds simple. Not with pushy opponents spoiling your every move. There’s a lot of strategy involved in this deceptively simple game. Push4 is perfect for 2-4 players and fun for all ages 9 to adult." Manufacturer: Summit By White Mountain (Summit Products, Inc. ???)