The Pasteur Pipettes manufactured by BRAND GMBH + CO KG feature a cotton plug on suction end,
Specification
Material: Soda-lime glass Packaging: Pack of 1000 ea Capacity: ~2 mL Overall L: 145 mm × 25 mm , length of suction tube Tip L × I.D. × O.D.: 45 mm × 1.0 mm × 7 mm