Description This set includes 463 pieces of durable and fine quality plastic components virtually indestructible and come in a sturdy plastic case for storage Specification Model zx 1003Material PP atomic LDPE connection key ABS box Features The organic chemistry curriculum the organic molecular structure model stick type molecular structure model can take a variety of common and more complex C H O N CL P S F CL Br I organic chemical molecular structure model suitable for teaching and laboratory use Suitable for junior high school students to study chemistry Easy to understand the molecular structure of chemical Training students ability Package Included QuantityAtomTypeHoles ColorDiameter mm H Hydrogen1White1770C Carbon2 180Black232C Carbon3 120Black2312C Carbon4 10928 Black2328C Carbon5 120 90Black236O Oxygen2 105Red2312O Oxygen4 10928 Red234N Nitrogen3 107Sky Blue238N Nitrogen4 10928Sky Blue234S Sulfur2 105Yellow238S Sulfur4 10928Yellow232S Sulfur6 90Yellow234F Fluorine1Orange176Cl Chlorine1Green238Br Bromine1Brown234I Iodine5 120 90Modena234P Phosphorus5 120 90Lavender234Metal one price1Silver Grey234Metal two price2 105Silver Grey232Metal six price6 90 Silver Grey232Bond TypeColorLength mm A single bondGray27100Double triple bond FlexiblePale blue4330A single bond Can be Benzene double bond Purple2750Double triple bond FlexiblePurple4330Long Transparent color6612A single bond percentageTransparent color1040Proportional double three