Reliable material: These lab seal plugs are made of high-quality rubber, which are very practical, not easily deformed, and has good sealing performance.
11 different sizes: # 000, # 00, # 1, # 2, # 3, # 4, # 5, # 6, # 7, 8 #, ideal for non corrosive or concentrated solutions that can meet most application needs.
Easy to use: The solid rubber plug features a conical design, making it easy to insert and remove. Safely push in holes and openings of different sizes to achieve instant leak proof sealing.
Usage: These rubber cork plugs are very suitable for laboratory and industrial use, and can be used for pipelines, storage tanks, flasks, and test tubes in industries such as medicine, chemical engineering, and scientific research.
Packaging contents: 28 pieces of black rubber stopper plugs, 10 pieces of # 000, 5 pieces of # 00, 0 # -3 #, two pieces each, and 1 piece of 4 # -8 # each.