VWR® Solid Rubber Stoppers, Black

These solid, black stoppers contain a high percentage of pure rubber, weigh less than neoprene, and are low in free sulfur (¹/₂%).

• Resilient and pliable for a long time
• Low in free sulfur
• Can withstand adverse laboratory conditions without hardening

Composition ensures resiliency and pliability over a long period.

 : Packaging Information: 53 stoppers per pack.