Product description
1.Made of solid rubber,high stability and durable.
2.Smooth surface and tapered sides designed for exceptional sealing and fitting a wide range of openings.
3.Perfect for flask,test tube or other laboratory apparatus need sealed,ideal for laboratory,household and industrial use.
Product Specification
Color:Black.
Material: Rubber.
Dimension:
Length: 25mm/1".
Top diameter:34mm/1.33".
Bottom diameter:27mm/1.06".

Packing Included:10Pcs Solid Rubber Stoppers.