10 OPCC Cubes - Finest Whiskey Rocks Pure Soapstone Chilling Rocks (Set of 10 Stones) in Gift Set with Velvet Bag Size: 3/4 x 3/4 x 3/4 inches - (2 x 2 x 2 cm) Made from soapstone which is nonporous, odorless and tasteless -- will not add anything extra to your drinks. Serve 3 to 4 stones to a glass - pour liquid so that it just covers the stones. Safe, natural chilling stone material. BPA Free. Whiskey stones make the perfect anniversary gift, birthday gift, groomsmen gift, wedding party gift, gift for best man or a great purchase for yourself.