The UV glue dispenser with a conical tip

Used for accurate dispensing of UV glue. Is installed on the bottle. Set of 4 pcs.
Long spout: 31.6 mm.
Needle No. 2: Inner hole diameter is - 0.25 mm; marking colour is red.
Needle No. 4: Inner hole diameter is - 0,41 mm; marking colour is blue.
Needle No. 5: Inner hole diameter is - 0.60 mm; marking colour is pink.
Needle No. 6: Inner hole diameter is - 0.84 mm; marking colour is green.