1,promotional usb warm cup 2.material,SBR CR + carbon fiber,USB cable,denim 3. ... 40-45 4,size,30*9cm namepromotional usb warm cup voltage 5v power 3w size 30*9cm temperature 50- ... material SBR CR,carbon fiber,USB cable,denim specification keep cup warm type usb warmer usb line 1.5mMOQ500pcs detailed ... material which can fit for different size of the cup based on its springy character.3.Can keep the ...