For very tiny & thin bugles, try the "Mircro Tubes (1MM to 3MM)"
3mm size
1
5mm size
2
9mm
size 3
12mm size
5
22mm
1Inch --------------= 27MM
The bead images below have been magnified several times their actual size to better illustrate the colors.
4mm & 6mm [Size 2]
9MM [Size 3]
1Inch --------------= 27MM
12MM [Size 5]
1Inch --------------= 27MM