
When I got them I didn't really know how they work. It consists of a hard plastic top and a soft bottom. You fill them up, and when you're cold, press down on the soft bottom and the cubes pop out. It was a little weird at first, but I got used to it. Time will tell how long they last. The cubes are also quite small, 1" x 3/4" x 1/2" deep. It took me nearly a hundred trays to chill my drink.

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

300PCS Pre-Cut Unbleached Parchment Paper Sheets - Perfect For Baking, Grilling, Air Fryer & Steaming!
36 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