Develop Fine Motor Skills: Provides a vivid multi-sensory experience with LED lights and music. Assembling the toy not only brings more fun, but also develops fine motor skills and fosters hands-on ability in your child. Share the bonding moments and increase parent-child interaction. Valuable Set: Our Roller Coaster Toy boasts a creative and cute design featuring 1 cartoon cardboard, 3 roller coaster tracks, 1 musical staircase, and 3 adorable little ducks/tyrannosaurus rex. Outstanding Durability: Constructed from top-quality ABS materials, this Roller Coaster Toy boasts superior durability and resistant to wear. Its robust and eco-friendly design can withstand hard play, offering more fun for kids without any deformity or damage. Unique Present: Get ready for the excitement and thrill of building your own roller coaster toy. This wonderful gift idea is perfect for birthdays, Christmas, Halloween, and more. Kids over 3 years old can unleash their creativity and enjoy hours of fun with family and friends. Simple to Use: With battery and USB charging options, our Roller Coaster Toy effortlessly slides along the track and turns smoothly, making it a thrilling experience for kids. Plus, the surprise element of the duck climbing stairs makes it even more exciting to use.