Clay blocks for car detailing can be purchased from various platforms, both online and offline. Here are some common platforms where you can find clay blocks:

1. Online Retailers:

   • Amazon
   • eBay
   • Walmart.com
   • Auto detailing specialty stores (like aliexpress Marflo Global Store,Marflo Team Store)

2. Auto Parts Stores:

   • Marflo Global Store
   • Marflo Team Store

3. Specialty Auto Detailing Stores:

   • Detailing supply shops (local and online)
   • Brands like Marflo, Brilliatechclay, claycar often have their products available on their own websites and through retailers.

4. Car Care Websites:

   • carwashcn.com
   • marfloteam
   • claycar

5. Local Automotive Stores:

   • Some larger automotive chains and local auto shops may carry detailing supplies, including clay blocks.

When purchasing clay blocks, it's essential to ensure you're getting a product suitable for automotive use and compatible with your detailing needs. Reading reviews and product descriptions can also help you choose the right clay block for your car's maintenance and detailing regimen.