BEST GIFTS FOR THE KIDS!!! Learning during playing. Magnetic Construction Set is a collection of magnetic sticks and steel balls that can be used to create varied shapes and colorful 3D models. A. Train children's coordination B. Improve the children's intelligence IQ C. Cultivate children's emotion and stable EQ D. Children and teachers perfect teaching and learning tool E. Inspire children's imagination and various potential creativity F. Cultivate children's lubricious feeling, stereo feeling and the sense of achievement Package Include: Magnetic Bar x 135 Steel Ball x 69 Magnetic Bar Specification: - Material: Food grade PP and magnetic iron bar - Color: Blue/Green/Red/Yellow/Sky Blue/Purple/Pink/Orange - Weight: 6g Ball Specification: - Material: Stainless steel - Weight: 7g It is popular in elementary school and middle school. Every rods and balls is same size, it will be helpful to understand what is the Pythagorean theorem and how to do 3D modeling. Line and point, looks two easy things, but not so that easy. Some people can make them looked orderly and comfortable. Romanticist can create abstract works. Just let imagination go wild! Warning: CHOKING HAZARD - Toys contains small balls and small parts, Not for Children under 3 years !