Rim-tempered mixing glasses.Rim-tempered.Clean, classic look.Sure Guard™ Guarantee.Excellent for use in any bar.Wide-rim mixing glass tapers to a thick bottom for a clean, classic look. Mixing glass is rim-tempered for increased strength and durability. Manufacturer's Sure Guard™ Guarantee protects glasses from chipping.Wide-rim mixing glass tapers smoothly to a thick bottom for a clean, classic look. A rim-tempering process concentrates heat before allowing glass to cool, creating a stronger and more durable product. Manufacturer's Sure Guard™ Guarantee protects glasses from chipping. Sleek mixing glass is excellent for use in any bar or restaurant.