Bring a fresh and natural feeling to your kitchen or table with this sustainable bamboo grinder, which is suitable for either rock salt or peppercorns. 20 ( l ) x 5 ( d ) cm bamboo, ceramic, & stainless steel ceramic & stainless steel grinding mechanism strong, solid & durable packaged in a natural kraft Okiyo gift box As bamboo is a natural material, there will be variation in the appearance in one product compared with the next or within similar items in a set.