500 Pack 4mm Solid Round Clear Glass Ball Boiling Stones Soda Lime Glass Beads

Specifications

Size - 4mm Diameter. The package includes 500 pieces of ballsMaterial - Made of soda-lime glass, which has good resistance to solvent and high-temp.Features - Solid round with polished smooth surface. The diameter tolerance is about +/-0.02mm. Softening Point: 726C / 1340FApplications - Glass balls are especially useful for model paint mixing, grinding and sanding, or use as lab boiling stones.Notice - Confirm the Ball Diameter before ordering.

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