Additional Details ------------------------------ Product description: This auction is for one (1) 50 pound bag of Food Chemical Codex Grade diatomaceous earth. 50 pounds is packaged in a double lined paper bag. This auction ships within 24 business hours of auction win, excluding week-ends and holidays. Paid auction wins received by noon EST Mon-Fri will ship same day, Local pick-up from our southern California Lake Elsinore location is available for a $20.00 pick-up fee. (Shipping fees will be adjusted when we process the order). We wholesale product to 150+ retail stores and veterinarians around the globe. We do not sell direct to the general public from our office locations in southern California, as we refer customers to our local retail stores, but since our retail stores do not offer 50 pound bags of DE at our auction price, we will allow local pick-up for this item. Codex Food Grade Diatomaceous Earth (aka Perma-Guard Fossil Shell Flour) has no expiration date as it is already the fossilized shell remains of the bottoms of fresh water lake beds thousands of years old.