The **Libbey 15144 20 oz DuraTuff mixing glass** is a **commercial-grade staple** for bars and restaurants, offering unmatched durability without compromising clarity. Engineered with **DuraTuff® technology**, this mixing glass undergoes a unique heat-treating process to reinforce its structure, ensuring it breaks into large, manageable pieces rather than shattering like tempered glass—a critical safety and cleanup advantage in a busy bar setting. Its **20-ounce capacity** and **tapered cylindrical design** make it versatile for both mixing cocktails and serving beverages, while its **brilliant clarity** elevates drink presentation, making every pour visually appealing for guests. Part of the **Restaurant Basics collection**, this glass is built for **high-volume commercial use**, making it a reliable choice for establishments that demand performance without sacrificing aesthetics.