As the name suggests, the 'Heavy Base' glassware collection from Libbey features a thick sham and is constructed of high-quality Heat Treated glass covered by the Safedge Rim Guarantee. The Heavy Base Old Fashioned Glass features a sleek cylindrical design, subtly tapering in from the rim to the sturdy base. This durable glassware resists thermal and mechanical shock and is made to withstand frequent use in bars and restaurants; if the rim ever chips, Libbey will refund or replace the item. Great for whiskey, scotch, brandy, or small cocktails served neat. - Glass - Capacity 5-1/2 oz - Top Diameter 2-7/8 in - Base Diameter 2-1/8 in - Height 2-7/8 in - Sold per case; 72 per case