★★★Buying Guide★★★ 【COD】All the listed products are supported by cash on delivery; 【Shipment】Your order will be shipped out within 24hrs from Manila; 【Delivery】Takes around 2 days to arrive NCR and 2-5 days to other provinces; 【Courier】SPX / J&T Express / Flash Express 【Warranty】6 months warranty ★Features★ * Inorganic/organic chemistry tutorials, organic molecular structure models. * Ball-type molecular structure models can be used to construct a variety of common and slightly complex C, H, O, N, Br, I chemical organic molecular structure models, suitable for teaching and Used in the laboratory. * J3112 - Complex - The student's molecular structure model of the ball stick, according to international standard configuration, can be used to build a variety of slightly complex organic. * Molecular Structure models and crystal structure models, suitable for teaching and laboratory use. It is suitable for building common organic and inorganic chemical molecular structure. ★Specifications★ Material: PP (atomic), LDPE (connection key), ABS (package box) Specifications: hydrogen atom diameter 17mm, other atom diameter 23mm Quantity: 268 pieces set Package weight: 0.55 kg ★Package Included★ 1* Molecular Structure models ★Notice★ 1. Please allowed 1-5mm differences due to manual measurement, thanks. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. If you have any doubt , please feel free to contact with us~ Hope you enjoy your shopping time ~