Solve Before It’s Lights Out: Pulse Cube starts with a fully reflective surface, but it’s hiding a colorful secret – discover the power of Pulse & race to solve or before you get stuck in the dark Light-Up Puzzle Cube: Scramble the Cube before pressing the logo to activate the lights. Colors appear & pulse for one minute before the lights go out. Need more time? Press again to add more time Speed Cube Training: Take on an advanced-level challenge & beat your personal best as you race to solve this Cube built for speedy solvers in 60 seconds or less. Includes 3 replaceable batteries Turn, Twist & Repeat: Love the challenge of Rubik’s Cubes? Take on the original 3x3 Rubik’s Cube puzzle or build your Rubik’s collection with the 4x4, 5x5, Phantom, Gridlock Game, & more Must-Have STEM Toy in Every Backpack & Classroom: Add Rubik’s Cube to your back to school supplies shopping list with Cubes that teach STEM learning skills, hand-eye coordination & strategic thinking Includes: 1 Pulse Cube, Instructions