4 lbs or 1.8 kg Ground Walnut Shell Media 18-40 Grit – Fine Walnut Shells for Tumbling, Vibratory Or Blasting-Fast Shipping

Description

Fine Walnut Shells Polish Surfaces without Damaging the Substrate

18-40 Grit Fine 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.

Made in the USA