These barriers can rapidly expand to their full size within 10 minutes by utilizing a highly absorbent powder. It can effectively manage and redirect flood water, removing the need for sand or manual labor and it is offered in lengths of 5ft, 10ft, or 17ft and can absorb up to 13.5 gallons of water. Currently, the price has been reduced from $19.99 to $16.03. Shipping is free for prime members or on orders over $25.