Toysmith Crash Cube Set Crash Cube Brain Burst Puzzle Toy. 1. Drop the cube, 2. Build the Cube, 3. Check your time, 4. Beat the best time. The timer stops when the last piece is inserted! You don't Need to be a genius... but it helps! Race against time to solve the puzzle - built in timer! For ages 8+ Drop it! Build it! Time it! Beat it! Requires 3 x Ag13 (1.5V) Batteries - INCLUDED