Stainless steel Square ice cube
The quick-frozen stainless steel ice cubes are made from high-quality food-grade stainless steel and filled with fast-frozen gel to ensure they stay cold for longer. It doesn't melt or spoil the taste, and it keeps the wine strong.
As long as you keep the rocks in the freezer for 4-5 hours ,While drinking, put 3-4 cubes and your can enjoy the cold taste of the wine.
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Specifications(cm)6.2*6.2*3cm