Red with white number
3321A1 Tube-lock 1-9
3321A2 Tube-lock 10-18
3321A3 Grommet-tie 1-9
3321A4 Grommet-tie 10-18

Yellow with black number
3321B1 Tube-lock 1-9
3321B2 Tube-lock 10-18
3321B3 Grommet-tie 1-9
3321B4 Grommet-tie 10-18

Blue with white number
3321C1 Tube-lock 1-9
3321C2 Tube-lock 10-18
3321C3 Grommet-tie 1-9
3321C4 Grommet-tie 10-18

White with red number
3321D1 Tube-lock 1-9
3321D2 Tube-lock 10-18
3321D3 Grommet-tie 1-9
3321D4 Grommet-tie 10-18