... 3mm. 4.Factory price,OEM accept 2012 hot sale silicone slap band for promotion. Material100% high quality silicon material, Eco-friendly, harmless, ... toxic, non-corrosiveness.Sizecan be customized sizeUsageAdvertising and business promotion gift, suitable for all peopleDesignCustom-made design, color, size, logoTechniquePrinted, ... very welcomed. made in china ,2012 hot silicone slap band for promotion