This appears to be a description of a set of stylish, reusable drinking containers.

Here is a breakdown of the key features:

FeatureDescriptionSet Size6 Piece (likely 6 jars, 6 lids, and 6 straws).Container TypeMason Jar style Juice Tumbler/Milk Tea Cup/Kettle (a mug-style jar with a handle).MaterialBPA Free (meaning the plastic components, if any, are safe) and typically Glass for the main jar.DesignGradient color, which means the glass has a subtle color that fades from one shade to another, or from a color to clear.ColorClear, indicating the glass itself is transparent, with the gradient likely being a transparent color effect (or the set contains a mix of colors, but the selected option is clear).Lid/CoverMetal Cover (screw-top lid) for a secure seal.AccessoriesIncludes a Straw that fits through a hole in the metal cover. The "Size Straw" part suggests a specific size or type of reusable straw (often metal or plastic).CapacityTypically around 450ml to 500ml (about 16 oz) per cup.

In summary, it is a set of 6 large, reusable, handled drinking jars with a modern, gradient-effect finish, complete with a metal screw-on lid and a straw, ideal for iced coffee, juice, smoothies, or milk tea.