Colours - Preforms can be produced in a range of colours, from tints to opaque, and can be colour matched to existing colours provided the order quantity is sufficiently large (typically 1 million minimum). The liquid colour process enables us to achieve attractive colours and finishes such as gold, silver and pearl effects. Packaging - Export preforms are packed in boxes of sturdy construction, with wooden corner posts to allow for stacking at least 3 high in moderate humidity climates. Boxes are securely strapped to 4-way entry pallets. They are packed 2 high into standard shipping containers, 20 boxes to a standard 6m (20ft) container, and 40 boxes to a standard 12m (40ft) container.