Uxcell 18mm to 24mm Solid Rubber Tapered Plug for Lab Home Black 5 Pack

What is this?
The Rubber Tapered Plug is great for laboratory utensils such as flasks, test tubes, or other laboratory applications, also can as a sewer plug, water pipe plug, or drain plug.

Are there any advantages of the product?
Made of silicone rubber, good resistance to chemicals, can withstand high temperatures in a short time.

How to use it?
Conical design, solid, easy to install and good sealing performance, flexible and durable, not easy to crack, shrink, harden or break.

What should I notice?
Please check the size carefully before ordering! This product has a smell, please place it in a ventilated place before use to reduce the smell.