Premium Material- -The set of molecular have good durability, Safe and non-toxic, wear-resistant, corrosion-resistant, not easy to damage. The product can endure many years. Never worry about broken problem, high gloss and texture. Product Feature- -This organic chemistry can help chemistry learner understand the 3 dimension Molecular and molecule in invisible -type world. It is an essential tool to children or the interest of students when learning chemistry. Precise Chemistry - -This sophisticated contains a full complete set to offer you to carry on the experiment. For teachers or parents, you can teach your students or children about the complex molecular structure much easier than only in books. Function- -This contains C,H,O,N,Br and other metals and a variety of single and double bonds, long bonds, long . Can be put high school, university chemistry in of the organic or inorganic molecular structure for the study of experimental operation. Electron Orbital Kits- -Our product contains extra electron orbital for advanced education in chemistry. In addition, the can enhance practical ability to link the molecular. Therefore it is an essential part for students and children. Material:ABS colour:As Shown Package Contents: 86 x 153 x Link 1 x Link Tool 1 x Plastic Box Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.