hobby retractable ballpoint pen oil pen sutra simple classic 0.7 office blue pen red roll changing ballpoint pen wholesale

blue (hobby brand)(蓝色（爱好牌）) black (free horse brand)(黑色（自由马牌）) red (free horse card)(红色（自由马牌）) blue and red mixed 2 colors(蓝 红 混2色) blue and black mixed 2 colors(蓝 黑 混2色) blue, black and red mixed 3 colors(蓝黑红 混3色)

1 piece(1支) 2 pieces(2支) 3 pieces(3支) 6 pieces(6支) 12 pieces (1 box)(12支（1盒）) 24 pieces (2 boxes)(24支（2盒）) 36 pieces (3 boxes)(36支（3盒）) 48 pieces (4 boxes)(48支（4盒）) 12+20 refill(12支＋20支笔芯) 24+50 refill(24支＋50支笔芯) 36+100 refill(36支＋100支笔芯) hobby card only blue(爱好牌只有蓝色)