How are The Peaks different compared with some other "mountain glasses"

Here are just a few ways the Liiton Peaks glass is unique: - It offers the Chill-Charge System™ - cools your drink is 18 seconds - The Liiton Everest glass is the only tumbler to feature a true 3D replica of Everest in the glass. Spirits can wrap around the entire mountain providing natural aeration for your favourite whiskey. - It’s built to last. Each glass is made of durable lead-free X1-Crystalline glass and weighs 1 lbs!