Naturally dense and eco-friendly, our ground black walnut shells are the perfect filling for high-quality pincushions. It provides the right amount of weight and helps keep pins sharp and rust-free. Sourced from sustainable black walnut trees and carefully processed for cleanliness, this all-natural filler is a favorite among crafters, quilters, and sewing enthusiasts. Adds weight and durability - ideal for pincushions and craft projects. Keeps pins sharp and clean. All-natural, biodegradable, and sustainable.