DescriptionThis sample grinder stick is made of glass material, practical enough to use for long time. Light weight, easy to hold and use, owning good touching feeling. The centrifuge tube stick is good for most 1.5ml centrifuge tube, can be a good science experiment tool.Features-Color:Transparent -Material:Glass -Size:11.70X0.70X0.70cm/4.60X0.28X0.28in - Note: Compatible with 1.5ml centrifuge tubes- Pointed tip design for easy sample grinding, this centrifuge tube stick is of great use.- Made of glass material, with good workmanship, the centrifuge tube grinding stick is reusable and support long time using. - Excellent grinding effect, suitable for biochemistry experiments, the glass centrifugal tube stick fit your demands. - Simple and easy to use, the centrifuge tube stick is proper for laboratory and personal use. - Light weight, small size, the centrifuge tube stick is portable, easy to be taken to any places you need.