uxcell 2 Pcs Solid Rubber Stopper, Tapered Lab Seal Tube Stopper Plug for Test Tube Flasks Glass Containers Industry and Laboratories, 90x75x39mm Black

uxcell 2 Pcs Solid Rubber Stopper, Tapered Lab Seal Tube Stopper Plug for Test Tube Flasks Glass Containers Industry and Laboratories, 90x75x39mm Black

• Solid Rubber Stoppers: The package contains 2 Pcs tapered lab plugs, their top diameter is 90mm / 3.54 inch, the bottom diameter is 75mm / 2.95 inch, and the height is 39mm / 1.54 inch. Please select the appropriate rubber sealing plug model and size before purchase to ensure its sealing effect and durability.
• Durable Material: The laboratory sealing plug is made of solid rubber, high density, elastic and good sealing, wear-resistant and not easy to deform, and durable.
• Tapered Design: Our lab rubber plug has a conical side, a smooth surface, easy to insert and remove, with good sealing and insulation performance. Very suitable for laboratory and industrial use.
• Easy to Use: These solid rubber plugs are easy to install, just insert the rubber plug into the mouth of the glass bottle, and gently turn to ensure that it is in place, and a firm fit.
• Application: Our rubber plugs are suitable for a variety of laboratory and industrial applications, including chemical reactions and sample storage, used to plug and seal test tubes, containers, flasks, pipes, and other experimental instruments to prevent leakage.