Simply subscribe to Boxiecat and you will continually receive the highest quality litter delivered to your doorstep with free shipping. This convenient subscription service does the heavy lifting and lowers your carbon pawprint at the same time. With minimal packaging and the elimination of round trips to the store, Boxiecat is truly green. Our all natural scent-free clay litter clumps on the top, making it easy to clean and leaving only fresh litter for the duration of use. Give your cat a bottomless litter box. No contract, cancel anytime.