Gauge Colour O. D. Regular Needle Length
28G Blue-green 0.36mm 13mm(1/2")
27G grey 0.40mm 13mm(1/2")
26G brown 0.45mm 16mm(5/8")
25G orange 0.50mm 16mm(5/8")
24G purple 0.55mm 19mm(3/4")
23G blue 0.60mm 25mm(1")
22G black 0.70mm 32mm(1 1/4")
21G green 0.80mm 38mm(1 1/2")
20G yellow 0.90mm 38mm(1 1/2")
19G beige 1.00mm 38mm(1 1/2")
18G pink 1.20mm 38mm(1 1/2")
16G white 1.60mm 38mm(1 1/2")
