2 Hole #5 Rubber Stoppers are 2-Hole #5 Tapered Rubber Stoppers that will plug bottles, lab vials and other openings. 2-Hole #5 Rubber Stoppers are manufactured from EPDM Rubber. Not for food applications (see silicone rubber stoppers)
I bought these rubber stoppers, [and another size also], and they are perfect for my needs.. They came fast. The price was very low, the quality was very high.. Thank you.