Open: Soda glass. Dimensions: Ø mouth: 6.95 ± 0.15 mm; Ø tip: 1.2 ± 0.15 mm; 0.53 ± 0.03 thick. Closed: Made of neutral soda glass, with the tip closed and cotton in the mouth. Easy opening of the closed part by pushing it slightly. Dimensions: mouth: 7.00 mm; tip: 1.4 to 1.6 mm; thickness: 0.50 mm.