Compatible: Original patented design - the ice mold can create 4 cylindrical ice rings, compatible with Stanley Cup 40oz 30oz. Perfect for Stanley Cup accessories. Food-grade material: Made of 100% food-grade material, BPA-free, odorless, reusable. Withstands high and low temperatures. Dishwasher safe. Longer cooling: Why was this product invented for Stanley Cup? The large hollow cylindrical ice cubes are 1.4 cm (0.55 inches) thick and have a longer cooling time than regular ice cubes, allowing them to keep your drinks cold all day and keep you hydrated all summer! Easy ice removal: The ice mold is made of more flexible silicone, making it easier to remove the ice cubes. Just peel off the outer mold and squeeze the lid to release your fresh ice. Wide applications: It is not only suitable for Stanley cups, but also for other brands of tumbler cups or bottles. For example, for Simple Modern, for Yeti, for Meoky, for Hydro Flask, for IRON °FLASK, for Reduce tumbler, and so on. Please confirm the size before purchasing.