Precision instrument grade 25mm ruby ball with a diameter tolerance deviation of ± 100 μm (25MM: 24.9mm-25.1mm)

These are excellent for severe environments. They have a high temperature working range, high strength, high hardness and high chemical stability.

Mohs Hardness Scale: 9

The listing is for *individual* synthetic red ruby corundum round beads with no hole.

These will work exceptionally well for scientific, recreational and artistic purposes.

Many people are using these with concentrates, vaporizers, bangers, dabs, dab rigs and dabbing.

We have the capability to produce a wide range of balls in various sizes and materials. 

Please contact us directly for custom orders and quantities.