Rubber Stopper Assortment, 1-Hole, Size No. 00 to 7, Convenient assortment of 1-hole rubber stoppers, Each

Details

These black stoppers are made of solid natural rubber that remains pliable over a long period of time, making them ideal for use with non-aggressive or concentrated solutions. They have low sulfur content and can withstand temperatures ranging from -25°C to 70°C (-13°F to 158°F). Additionally, they are autoclavable.