... convenice for dark work,can read&write in dark condition Led light ballpoint pen,led light pen,best-selling light pen1. ... ) MOQ: 5000pcs6) Ink/ refill color: black or blue7) Pen barrel color: can be customized colour8) Light color: Red,blue ... specialized in various kinds of metal ballpoint pen, roller pen,fountain pen,plastic ball pen, wooden pen, etc.Excellent quality, competitive price, durable ...