ITEM NAME:White Silicone Stoppers Plug Rubber Stoppers Plug Bung for Flask Test Tube Description: - Made of high quality silicone, non-toxic and odorless - The surface is very smooth - Don't react with anything except strong alkali and hydrofluoric acid, don't dissolve in water or any solvent - Suitable for flasks, test tube, bottles of inside diameter 48-53mm - High quality, durable Specification: - Material: Silicone - Size: - - Top Diameter: Approx.53mm/2.09 inch - - Bottom Diameter: Approx.48mm/1.89 inch - - Hight: Approx.51mm/2.01 inch - Suitable for bottles of inside diameter: 48-53mm - Color: White Package Included: 1 Piece Silicone Stopper.1 Piece Silicone Stopper. - Made of high quality silicone, non-toxic and odorless. - Material: Silicone. - Don't react with anything except strong alkali and hydrofluoric acid, don't dissolve in water or any solvent.
