Swiss Quality Hytrel I-Ring ,Height 1.75Mm, Thickness 0.40Mm In 49 Sizes From External Diameter 16.8, 17.3, 17.8 To ¡K 39.8, 40.3, 40.8Mm By Step 0.5Mm (Internal Diameter 16.0 To 40.0) Total 49X2=98Pcs For 2.0Mm Glass Or Thicker
Refill Code : Wr-6008G20-168 / External Diameter