The ELLO Creation System by Mattel is a building toy set that includes over 360 pieces, a sticker sheet, and a manual booklet. Designed for children ages 5 and up, this set offers a mix of fantasy and STEM themes, allowing kids to explore creativity and problem-solving skills. The plastic pieces come in a variety of colors, providing endless opportunities for imaginative play and construction. Perfect for young builders looking to expand their building toy collection, the ELLO Creation System offers hours of fun and learning.