Hey,folks,there is a giveaway on facebook page! Winner will get smok primus tc box mod This giveaway will end on 14th June,and the winner will be announced on 15th June. http://ow.ly/1CtE3011Vrb smok koopor 300w primus tc box mod made of stainless steel and zinc alloy, max output 300watts,support resistance as low as 0.06ohm,powered by 3pcs 18650 batteries(not included)...