Package: 4 sets of stacked spinning tops. Each stacking spinning tops set made of thick and sturdy plastic has five gyros of varying sizes and one launcher. Easy to use. Attach the launcher to the spin top, twist 3-4 times and then press the button to release it. Playing with this stackable spinners not only can exercise children's hand-eye coordination, but also teach toddlers to count and distinguish between colors, because the super stacking spin top can be stacked up to five layers of different colors. You can play the gyro spinning top singly or stack them together. Stacking up five layers while the top spins is a little challenging, but that's what makes it fun. Compete against your friends to see who can finish a stack of five gyros the fastest! Colorful gyroscope spinning toys are cute gifts for kids on birthday, Halloween, Christmas, Thanksgiving, Children's Day, Easter, New Year, etc. Perfect for children good behavior incentive, student reward, daily educational reward, competition prizes, school class prizes and so on. Novelty Spinning Tops