6-each basic bar by charles schumann; whiskey double old fashioned glass style; 12 ounce capacity; 3.6 inches tall by 3.4 inches wide * Tritan crystal: non-lead material made of titanium and zirconium oxide; resists breakage, chipping and scratching; thermal shock resistant; patented * Classic whiskey/ double old fashioned tumbler glass; designed with a thick base * Completely diswasher safe; will not etch, cloud or discolor for the life of the glass * Made in germany; well suited for drinks such as old fashioned, whiskey sour, caipirinha