Crystal Model of Sodium Chloride This plastic sets contains different colored jacks (red, black, and white), and tube connectors (long and short) that can be joined together to form the structures of Sodium Chloride. Set includes a plastic storage box, and a printed illustration of the complete model. Assembly is required. Shipping weight is 0.5 lbs.; shipping dimensions are 5 x 4 x 1.5 Graphite Crystal Model is shown in photo. Sodium Chloride Crystal Model Qty :