Specification Inner diametter Diameter Color ( screw type)
14G 1.55mm 2,1mm Olive
15G 1,36mm 1,8mm Amber
18G 0.84mm 1,27mm Green
20G 0.6mm 0,91mm Pink
22G 0.41mm 0,72mm Blue
21G 0,51mm 0,82mm Purple
23G 0,34mm 0,64mm Orange
25G 0.26mm 0,51mm Red
27G 0.21mm 0,41mm Original
30G 0.16mm 0,31mm Light purple
32G 0.11mm 0,23mm Yellow
34G 0.06mm 0,19mm Snow cyan