• The Rubber Tapered Plug is great for laboratory utensils such as flasks, test tubes, or other laboratory applications.
• Made of rubber, with good resistance to chemicals, acid and alkali resistance, can withstand high temperatures in a short time. There is a hole in the centre of the plug for inserting a glass tube, very convenient for meeting your needs.
• Conical design, solid, easy to install and good sealing performance, flexible and durable, not easy to crack, shrink, harden or break.

• • Please check the size carefully before ordering! This product has a smell, please put it in a ventilated place before use to reduce this smell