You can buy it online and offline, but I usually buy it online at the flagship store of Tmall. Sometimes I have activities. I can buy a catty for more than 20 yuan, and a catty can be used to make seven or eight kilograms of alms cakes. It's a good deal. The most important thing is that this brand of horseshoe powder is very pure, is it 100%? The water chestnut is ground without impurities, so the alms cake is crystal clear.