[MR3.0 (90 & 14)]
[MR4.5 (120 & 20)]
MR 3.0 (Singer Size 14 / Metric Size 90) MR 3.5 (Singer Size 16 / Metric Size 100) MR 4.0 (Singer Size 18 / Metric Size 110) MR 4.5 (Singer Size 19 / Metric Size 120) MR 5.0 (Singer Size 21 / Metric Size 130) MR 6.0 (Singer Size 23 / Metric Size 160)