Challenge your mind with this IQ cubes set, a colourful collection designed to test your logic and keep your hands busy. Made from plastic and featuring a mix of vibrant multi-coloured designs, each piece offers a unique puzzle experience. The kongming lock measures 3.8 x 3.8 x 3.8 cm and fits neatly in your palm, ideal for quick brain breaks or focused play. Packaged as a brain game mixed gift box, this set is perfect for puzzle lovers or as a thoughtful gift for anyone who enjoys mental challenges. Whether at home, school or on the go, these IQ games provide engaging fun in a compact format.