Sparq Soapstone Rocks Whiskey & Wine Rocks Coffee & Tea Rocks Set of 9 New.

Made from recycled soapstone in Colorado, these innovative ice cube substitutes will chill your favorite spirit without diluting it. For the early birds, these multi-functional rocks can double as coffee or tea stones. Pop one or two rocks into the microwave, drop them in your mug, and enjoy your heated drink for twice as long. Use for iced or hot beverages. Eco-Friendly Material Stoneware  9 Grey Stones. Dimensions: 0.75 in x 0.75 in x 0.75 in each.