Safety Material: Crafted from ABS plastic bricks that are durable non-toxic and green materials, with bright colors, good flexibility and not easy to damage, its smooth surface and rounded corners make it safe for children. Roller Coaster Amusement: The theme parks building blocks feature Sharks , Cuttlefish and Seaweed, Kids can slide around the track for hours, enjoy the fun of the amusement park and immerse in endless carnival games. Adds Fun and Entertainment: The roller coaster building block set brings boundless fun and entertainment. Children can experience the thrill of riding a roller coaster, embark on adventurous journeys with whale, and derive joy and satisfaction from their playtime. Easy to assembly: The bricks are designed for easy and intuitive assembly, allowing children of different age groups to construct the roller coaster amusement with minimal adult assistance. Great Gift: Our roller coaster building bricks set is suitable for boys 8-14 years and girls. Also is an ideal educational toy gift for adluts birthday, Christmas.