If you need walnut shell "grit" for polishing metal or water filtration, specialized industrial suppliers offer bags ranging from 10 lbs to 1-ton "jumbo" bags. Walnut Shell Blasting Media Grit - Kramer Industries
Often lists unique natural handmade ornaments and bulk lots of shell pieces. where to buy walnut shells
Walnut shells are a versatile resource available through various channels depending on whether you need them for crafting, industrial sandblasting, or gardening. If you need walnut shell "grit" for polishing
For smaller quantities (11 oz to 10 lbs), major e-commerce platforms offer crushed, ground, or whole shells. major e-commerce platforms offer crushed