Catalog number: 1-7650-04 Features: ● Holes can be made simply by cutting into the convex part on the bottom of the rubber stopper, making the hole making work easy. ● The hole diameter is 5 mm, which is convenient for using glass tubes, etc. ● If used without cutting, it can be used as a normal rubber stopper. Specifications: ● Holed silicone stopper No. 11, 1 piece Material/Finish: ● Red rubber stopper: Natural rubber ● Silicon stopper: Silicon rubber Note: ● Price is per piece.
