USB slap bracelets slap bracelets silicon wristband with custom logoo gift bracelet/wristband, usb slap band Professional manufactory with High quality + Cheapest price+ Best service+ Fast deliveryMaterial100% high quality silicon material, Eco-friendly, harmless, non-toxic, non-corrosiveness.Size202*12*2mm, 180*12*2mm, 160*12*2mm. 202*25*2mm, 180*25*2mmUsageAdvertising and business promotion ...