DescriptionThis is a scientific laboratory glass tube adapter. It is made of premium quality glass material, heat-resistant, sturdy, stable and durable to use. Provide transparent essential adapter for home, laboratory, school, factory, and etc.Features- Color:Transparent.- Material:Glass.- Size:12.00X8.00X4.00cm/4.72X3.14X1.57inch.- Made of great quality glass material, durable and safe for long lasting use.- This scientific glass tube adapter is very easy to use, giving you much convenience.- The product is in a simple design, but very useful and practical to use.- Strong and heat-resistant, and will not break easily during use.- You will have a good use experience because of the perfect workmanship of this product.