Each of our rock glasses features a unique embedded dice, offering a conversation-starting piece that cools your drink without watering it down. These glasses are meticulously crafted from lead-free borosilicate to ensure durability and safe daily use. Featuring a whimsical white dice made from BPA-free plastic, encased within the glass walls to avoid any contact with your bourbon, cocktail, or preferred beverage, these glasses promise pure flavor with every sip. Perfect for the whiskey connoisseur, each glass is hand blown from premium lead-free crystal, making it a stylish and safe option for any bar or gift. Complying with CPSIA standards, our glasses measure 3.74" L x 2.95" W, providing an optimal drinking experience.