1, offline purchase: In Hefei, there are many merchants selling hairy crab cards. Search for "Hefei Hairy Crab Card" on the map, find a nearby business and buy it.

2. Online shopping: Search for "Hefei Hairy Crab Card" on e-commerce platforms such as Taobao and JD.COM, and choose merchants with high credibility to buy it.

3. Merchant website purchase: Hairy crab merchants have official website in Hefei, so they buy hairy crab cards on the website and choose to receive them by express delivery.