Features: brand new and high quality 3D Realistic Design: With colorful 3D realistic human DNA design to stimulate kid' interests, encourage and enhance brain development, exercise and improve their hand-eye & brain coordination. Qualification Materials: Made by quality ABS plastic, smooth edges as well as wear-resistance, non-toxic and safe friendly to your kids. Interactive Function: Unique design, with assembly human DNA & double helix structure , kids can learn the genetic structures through to finish the puzzle assemble work, easy to evoke kids' concentration and stimulate their interactive for play to build DNA with parents. Educational Training: With good stimulation to educational training for kids, improve their build skills as well of abilities of for creative and cognition of human DNA structure and science knowledge. Best Choice for Kids: Suitable for kids as birthday gifts, Christmas gifts, and DIY their own DNA Structure model, explore their science world. Specifications: Product Dimension: approx. 33 x 11.6 for cm/12.99 x 4.57 inch Material: ABS Plastic Color: As pictures shown Net Weight: 150g/0.33 lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Assembly Human DNA Structure Toy