These are plastic covers and casing which are customized ones according to the drawing from costomer, some of them are surface painting parts. Unit Price��?USD $ 0.25 / pc Minimum Order��?500 pc OEM service: please send us your drawings or samples if you have plastic parts need to be done in China, we will provide you same parts with high quality and best price. Other service: pad printing, silk-screen printing, painting, plating(chrome or galvanized, etc.), final assembly and packaging.