2.50mm (Cousins)
2.50mm Thick - Flat - Mineral Glass - CousinsUK
- Range 17.0mm to 40.0mm, All sizes (17.0, 17.1, 17.2....)
- Range 40.5mm to 50.0mm (in jumps of 0.5mm)
- Thick (2.50mm) Flat Watch Glasses