Our Capillary Tubes are 75mm in length and have an inside diameter of approximately 1.1mm to 1.2mm and an outside diameter of approximately 1.5mm to 1.6mm. We offer tubes that are open on both ends and tubes that are closed on one end. They are packed in vials of 100 tubes.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.