Material: This building block toy is made of durable ABS plastic with smooth rounded corners that won't cut a child's hand and is durable. Features: The building blocks are colorful and can improve color recognition, while fostering creativity and imagination in the construction process. Educational toys: Building blocks help young children develop basic skills in science, technology, engineering, art and math. Through construction and exploration, logical thinking and practical ability can be improved. Perfect gift: This is the perfect gift for children on Children's Day, birthday, Christmas. Date First Available April 12, 2024