รายละเอียด
| Specification | Single needle | Twin/ multiple needles | ||
| Inner diameter | Diameter | Inner diameter | diameter | |
| 15G | 1.45mm | 1.81mm | – | – |
| 16G | 1.25mm | 1.61mm | – | – |
| 17G | 1.12mm | 1.48mm | – | – |
| 18G | 0.90mm | 1.26mm | 0.86mm | 1.22mm |
| 19G | 0.70mm | 1.06mm | 0.68mm | 1.00mm |
| 20G | 0.58mm | 0.88mm | 0.58mm | 0.91mm |
| 21G | 0.51mm | 0.81mm | 0.49mm | 0.83mm |
| 22G | 0.41mm | 0.71mm | 0.39mm | 0.72mm |
| 23G | 0.33mm | 0.63mm | 0.32mm | 0.63mm |
| 24G | 0.30mm | 0.55mm | 0.29mm | 0.57mm |
| 25G | 0.26mm | 0.51mm | – | – |
