straight liquid signature pen [syringe heads]](直液式签字笔【针管头】)

30 black pens get 1 red pen for free [only sold for one day(30支黑笔送1支红笔【只卖一天) black 24 pieces get 1 red one free(黑色24支送1支红色) get 2 red for black 50 pieces [only 18 orders]](黑色50支送2支红色【仅送18单】) 100 pcs black(100支黑色) 100 red(100支红色) 50 pcs black(50支黑色) 50 red(50支红色) 50 pcs blue(50支蓝色) black 30 pieces(黑色30支) red 30 pieces(红色30支) blue 30 pcs(蓝色30支) 30 black +10 red +10 blue(30黑＋10红＋10蓝) 50 black +10 red(50黑＋10红) 80 black +10 red +10 blue(80黑＋10红＋10蓝) 90 black +10 red(90黑＋10红) 20 black +5 red +5 blue(20黑＋5红＋5蓝) 5 black +3 red +2 blue(5黑＋3红＋2蓝) 50 black +50 red(50黑＋50红) 40 black +10 red(40黑＋10红) black 10 pieces(黑色10支) red 10 pieces(红色10支) 1 blue pen *-*(1支蓝笔*-*) blue 10 pieces(蓝色10支) black 20 pcs(黑色20支) red 20 pieces(红色20支) 20 black +2 red +2 blue(黑色20支＋红色2支＋蓝色2支) 5 black(5支黑色) black 12 pcs get 1 red for free(黑色12支送1支红色) 20 pieces in black and 1 piece in red for free(黑色20支送1支红色) black 20 + red 4(黑色20支＋红色4支) 24 black +2 blue +2 red(24支黑色＋2支蓝色＋2支红色) 8 black pens *-(8支黑笔*-) 18 black +1 red +1 blue [barrel]](18支黑＋1支红＋1支蓝【桶装】)