No Dilutionm. Rinse And Reuse. Hinged Wood Box. No Assembly Required. 3.75 In. L X 3 In. W X 1.375 In. H. Keep Your Refreshments Cool With These 9 (.75") Whiskey Stones, Packed In A Natural Wood Box With A Handy Black Cloth Drawstring Pouch. Stones Are Natural Basalt Stones And Are Designed To Be Completely Reusable. Simply Place Stones In A Freezer And Then Use Them In Your Drinks.