There doesn't seem to be any moving gel or liquid in the walls, just a textured pattern of something. But, and this is great, it really works. The beer stayed much colder for much longer! I usually put a can of beer in the freezer before serving so I did that and used this glass and wow that's a colder beer! In fact, some of the beer froze on the sidewalls and took half an hour or more to thaw completely. Next time I won't have to pre-chill the beer. Now I want to try soda and soft drinks.
Rainbow Portable Stainless Steel Flatware Set - Travel Camping Cutlery Utensil Silverware Dinnerware With Waterproof Case
42 Review
Set Of 4 Large Handle 15Oz Classic Black Ceramic Coffee Mugs By Serami
49 Review
Shopwithgreen'S Unbreakable Wheat Straw Plastic Kids Bowls β Lightweight And Sturdy, Ideal For Baby, Toddler, And Children β Microwave And Dishwasher Safe
45 Review
Arctic classic thermos 106, 0.75 l, silver
73 Review
2-Pack European Grade Silicone Bunte Cake Pan Set - Non Stick Bakeware Fluted Tube Mold For Jello, Gelatin & Cakes | 9 Inch Baking Pans | Aokinle | BPA Free
38 Review
SMARTAKE Non-Stick Parchment Paper Roll, 13 In X 164 Ft (177 Sq. Ft) For Baking, Cooking, Air Fryer, Steamer, Kitchen, Cookies, Bread, And More - White Baking Pan Liner
41 Review
GOBAM Wood Rolling Pin: The Perfect Dough Roller For Baking Cookies, Pie, Pizza & More - 13 X 1.38 Inches
35 Review
AmazonBasics Silicone Baking Mat Sheet
48 Review