One of the newest entries used for many of the bright, nearly indestructible, solid-color piecesis ABS (acrylonitrile-butadiene-styrene), from which football helmets are also .
Perbunan is made with acrylonitrile but the formulas of the others have not been published.
According to local merchants, the price of a ton of ABS (acrylonitrile-butadiene-styrene), a common ingredient in hard-plastic products, has virtually doubled since March.