Our borosilicate glass Test Tubes have rolled rims and uniform wall thickness. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

Thistle Tube - Glass 7mm OD stem with Bulb top. Available in the following stem lengths: 150, 300, 400mm

Our borosilicate glass gas measuring tubes have permanent, white graduations, subdivided by 0.1ml. We offer tubes of varying capacities. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including arsenic and lead, which are known to the State of California to…

The Glass Double Thistle Tube has funnel opening on both ends, 7mm OD stem and is 300mm in length.

Borosilicate Glass. Available with and without base. With and without graduations.

The straight-style drying tubes have a small stem which is approximately 6mm in diameter, a body that is approximately 14mm in diameter, and a bulb is 26mm in diameter. They are available in three lengths. The U-shaped style drying tubes have a tube that is 14mm in diameter and are available…