8 lbs or 3.6 kg Ground Walnut Shell Media 12-20 Grit - Medium Course Walnut Shells for Tumbling, Vibratory Or Blasting
- Medium Course Walnut Shells Polish Surfaces without Damaging the Substrate.
- 12-20 Grit Medium Course Abrasive Consistency.
- 100% Crushed Walnut Shells, Environmentally Friendly..
- Use Low Pressure 20-60 PSI for Soft/Sensitive Materials. Exceeding 80 PSI Lowers the Longevity of the Walnut Shell Media..