Description : "Ready, Rotate and Place! Test your accuracy, with the ultimate puzzle game now in palm size format Tetris Nano. Manipulate and place the falling Tetriminos by rotating them for the perfect fit to create a horizontal line. Once a line is created without gaps, the line will clear. When more lines are cleared, the Tetriminos will begin to fall faster. Think fast and act quickly to become a master or the Tetriminos will begin to pile up on you! Requires 2x ""AAA"" batteries, not included. Measures about 4-inches tall. Ages 6 and up."