Ceramic Grinding Cylinder, 5/16" x 5/8", for 15mL PP Tubes, 100/Bag

Angle cut ceramic grinding cylinders ensure efficient homogenizattion of dry samples, especially cannabis and hemp flower for QuEChERS pesticide residue extraction. Recommended for 15mL polypropylene centrifuge tubes instead of stainless steel grinding balls to reduce the chance of tube breakage. 2 cylinders per tube.