OUNONA 5pcs Erlenmeyer Flask Stopper Corks Stoppers Stopper for Erlenmeyer Flask Test Tube Stopper Cork Vacuum Stopper Lab Bottles Plug Vacuum Wine Stopper White

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OUNONA 5pcs Erlenmeyer Flask Stopper Corks Stoppers Features

• Laboratory supplies-- these silicone stoppers are using a suitable shape design, easy to insert and pull,erlenmeyer flask stopper

• Conical glass tube stopper-- smooth and , will not do damage to the bottles or test tubes in laboratory,experiment accessories

• Test tube stopper-- constructed by using high-grade material, it safety and can use it with confidence,flasks round plug

• Wine stoppers-- fine workmanship premium silicone material, and good durability, can be used for a long time,stoppers for bottle

• Test tube plugs-- the practical silicone stoppers, easy to pull and remove, save time and labor,flask stopper with hole

About OUNONA 5pcs Erlenmeyer Flask Stopper Corks Stoppers