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The idea: developing a highly effective ice bucket.
No material reflects the qualities of ice better than glass. Unfortunately glass lacks insulating qualities unless its double-walled. Thats why the COOL ice bucket is made from double-wall borosilicate glass, which gives it maximum insulation on the inside and no condensation mess on the outside. Its conic shape makes for slightly less tolerance in glass production, which is furthermore countered by the elastic quality of the rubber lid. A wavy rubber mat sits at the bottom of the bucket to both protect the glass and lift the ice cubes above the melted water thus preserving the ice longer.