Specification

1/4 inch 

1/2 inch 

1 inch

1.5 inches

Inside D(mm)

Outer D(mm)

Color

14G

have

have

have

have

1.54

1.83

Olive

15G

have

have

have

have

1.36

1.65

Amber

18G

have

have

have

have

0.84

1.27

Green

20G

have

have

have

have

0.60

0.91

Pink

21G

have

have

have

have

0.51

0.82

Blue

22G

have

have

have

have

0.41

0.72

orange

23G

have

have

have

have

0.34

0.64

orange

25G

have

have

have

have

0.26

0.51

Red

27G

have

have

have

have

0.21

0.41

Transparent

30G

have

have

have

Non has

0.16

0.31

Shallow purple

32G

have

have

Non has

Non has

0.11

0.23

yellow