This product uses high-quality food-grade base oil, which is colorless and odorless, suitable for long-term daily maintenance of Rubik's Cubes and effectively reduces wear. Rotate the Rubik's Cube 45 degrees, apply 1-2 drops to the contact surfaces, and rotate the cube to allow the oil to adhere evenly to the contact surfaces. The different colored packaging corresponds to three different usage scenarios: blue for daily maintenance, green for increased lubrication and orange for stabilizing speed.