Set Of 9 Stone Ice Cubes With A Drawstring Pouch In A Bamboo Gift Box | Non-Diluting | Chill Your Favorite Beverage Without Altering The Flavor | Hand Wash & Refrigerate For 4-6 Hours For Optimal Performance | Maintains Cold For 10-20 Minutes At Room Temperature | Reusable | Supports Responsible Forestry | FSC Certified | FSC® Certified Products Are Made With, Or Contain, Forest-Based Materials Sourced From Forests That Have Been Audited By An Independent Third Party To Confirm They Are Managed According To FSC®'s Rigorous Social And Environmental Standards. | Meets FDA Requirements | BPA Free | Hand Wash Recommended