There has been a huge run on Black Snake Sandbags™ sold on Amazon.com in all sizes! Wow! Though we forecast and manage inventory for sales on Amazon, this has caught us by surprise. Don't worry, we are working furiously on restocking all sizes and Amazon should have them available for sale by early next week. We appreciate that word has gotten around and many people are finding Snake Sandbags™ to be a valued product. We are humbled.