Plasticoid Black Rubber Stoppers Solid 4--M290 Case

Plasticoid Black Rubber Stoppers Solid 4--M290 Case. Combining top-notch and uncompromising quality with an affordable price the Plasticoid Black Rubber Stoppers Solid 4--M290/ 59580-160 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: These solid black stoppers contain a high percentage of pure rubber weigh less than neoprene and are low in free sulfur (1/2percent). Composition ensures resiliency and pliability over a long period.