4 x Unbreakable Polycarbonate Tonic / Mixer / Cocktail Remedy Glassware (12oz Tall) 4 x Virtually unbreakable polycqarbonate Highball drinkware Glasswasher safe. Made in the United Kingdom Look and feel like real glass but so tough that they cannot even be broken with a hammer Perfect for bars, restaurants, Hotel poolside, Beach and all outdoor