Manual Flax Seed Grinder - Pepper Mill with Adjustable Coarseness - Hand Crank Grinding Bottle for Home Use Durable materials: safe and reliable, sturdy and lightweight, wear-resistant, not easily broken or faded. Adjustable device: The pepper grinder can be adjusted by turning the top nut from loose to tight to achieve the desired seasoning fineness, thickening counterclockwise and thinning clockwise. Design: The pepper grinder features an ergonomically designed wooden body, providing a comfortable grip. It adds a classic touch that appeals to family and guests. Easy to carry: With a lightweight design, the manual spice grinder is easy to move and convenient to store. Its compact size makes it travel-friendly without adding extra weight to your bag. Widely used: This hand crank grinder is suitable for grinding various spices such as pepper, salt, sea salt, Sichuan pepper, black pepper, sesame seeds, flax seeds, and more.