This has a square bottom and is slightly smaller than the Deluxe model that is a round bottom. Use this fine mesh Nut Milk Bag for straining your nut milk to make them very smooth. Smooth nut milk goes great in recipes and when serving meals to persons unfamiliar with raw foods. This is a nylon fine mesh bag so a little extra time will be needed to strain the milk but they will come out delicious. Tip add a little kelp or dulse to your nut milk, also 1 T agave nectar per quart rounds out the flavor of nuts blended with water, a pinch of sea salt helps too.