• Rubik's 3x3 Phantom Cube with innovation that adds difficulty to the classic design. • Thermochromic technology: colors appear temporarily with the heat of touch. • Advanced challenge for experienced players who must solve it before the colors fade. • Combines math, art, and science to challenge the mind and problem-solving skills. • Recommended for adults and children aged 8 and up. • Helps improve muscle memory and problem-solving skills. • Includes 1 Rubik's Phantom Cube.