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| Base color | 1/2inch，Needle length12.7MM |
| Transparent | 16G |
| Pink | 18G |
| cream color | 19G |
| yellow | 20G |
| green | 21G |
| black | 22G |
| Blue | 23G |
| purple | 24G |
| Orange | 25G |
| Brown | 26G |
| Light gray | 27G |
| Light blue | 28G |
| Light yellow | 30G |
| The bayonet needle series are relatively economical, and are generally used in occasions with low requirements and manual dispensing operations. | |