Size:

[One with line] S code (0-3 months)

[One with line] M code (3 months +)

[One with line] L code (6 months +)

[One thread included] Cross hole (12 months +)

[2 pieces with line] S code (1 month +) round hole

[2 lines included] 2S code (0-3 months) round hole

[2 with line] M code (3 months +) round hole

[2 lines included] L code (6 months +)Y hole

[2 lines with thread] 2L code (9 months +)Y hole

[2 lines with thread] 3L code (15 months +)Y hole