The 4-in-1 Dinosaur STEM Kits by YUTIN are educational toys designed for kids ages 6-16. These wood building toys allow children to construct their own T-Rex and Triceratop dinosaur models, promoting hands-on learning and creativity. With product dimensions of 10 x 9 x 1.7 inches and weighing 1.4 pounds, these STEM kits are perfect for young dinosaur enthusiasts looking to explore science and nature through play. Made in China, these kits are a great way to engage children in learning about dinosaurs in a fun and interactive way. Outer box opened for photos only. All 4 dinosaur kits remain sealed in original packaging with unused parts, screwdriver, and instruction booklet included. Never assembled.