What is the difference between Super flint glass and Normal flint glass

What is the difference between Super flint glass and Normal flint glass ?

When you start to order glass bottle, there is different glass material for selections, so what is the difference for them? here below will be clarified.

Normal flint glass

Normal Flint Glass has a slight green tint that can vary based on glass thickness and other factors. The tint is most apparent at the base and shoulders, where the glass is thickest, and is less visible when filled. Domestic Flint draws it's appeal from it's vintage look for certain applications.

Super flint glass

Super Flint Glass does not have a tint and appears completely clear filled or unfilled. It is ideal for displaying products when accurate color representation on shelf is a priority.

super-flint offers the best in clarity, often compared to glass. Super-flint bottles tend to be more substantial, heavier and often contain a deep base – 20-30mm – which gives the bottle a more quality feel. Super-flint tends to be the choice of brands in the premium alcoholic beverage sector, particularly those in the vodka, cognac, brandy and whiskey categories.