Description:100% Brand New and QualityFood grade silica gel material. All products comply with FDA and safety certification standards.Super tensile, flexible texture, can be rubbed repeatedly, suitable for long-term recycling Easy to release and clean.More than a novelty, big ice melts/dilutes more slowly, making them ideal for your Old Fashioned, Scotch, Bourbon or Blended Whiskey.No fading, no mildew, no blackening, no embrittlement, and longer service life than other materials.Specifics:Material: Food grade silica gelColour: BlackType: 4 Hole mold/6 Hole moldSize:4 Hole mold:12x12x5.2CM(4.7 x 4.7 x 2in)6 Hole mold:18.5x13x5.2CM(7.3 x 5.1 x 2in)Type:Ice Ball MoldModel: Round Ice MoldsNote:1.Please allow 1-2cm error due to manual measurement.2.Color may have a little color difference, Because of the different display settings.