... with double core.(1)Basic diameter:5.0mm(2)Mainly color: Red, Lemon, Aqua, Orange, Grass green, Blue, Purple, Pink, Gold ... (3) Diversified diameters and colors.Basic diameter:5.0mmMain colors:Red, Lemon, Aqua, Orange, Grass green, Blue, Purple, Pink, ... Gold Yellow , Fluorescent Red, White.(4) Powerful production capacity:Our factory can manufacture 2000 ...