Pack of 50 Rubber Stoppers, Solid, Assorted Sizes - Resistance to Acid, Alkali, and Ammonia - Eisco Labs

Pack of 50 assorted rubber stoppers.

Solid. Orange color.

Contains 7 stoppers each of the following sizes: 8mm, 9mm, 11mm, 13mm, 15mm bottom diameter. Contains 3 stoppers each of the following sizes: 17mm, 21mm, 25mm, 29mm bottom diameter.

Made of superior quality, long lasting rubber

Resistant to acids, alkali and ammonia.