This is a set of four vintage Libbey glass tumblers from the Apollo product line. The tumblers are round in shape, with a glossy blue finish and a pressed glass production style. They have a capacity of 6-8 oz and are 3 1/4 inches tall with a diameter of 3 1/8 inches. The tumblers are unisex and suitable for all occasions. They were produced in the United States in the 1970s using fused glass production technique.