You need to find out rather or not the vendor has photos available of the product they are selling. When you're shopping face-to-face, you have the option to look at items close up, hold them in your hand, and study their texture. When you are shopping Car 9H Anti-scratch Ceramic Liquid Repair Maintenance Fluid Swirl Remover Auto Coat Anti-scratch Hydrophobic Glass Coating online, photos are the closest thing to this there is. I would not advise buying from any on the net goods shop that doesn't present pictures of the product. You should research the online goods shop's shipping policy. How much should shipping be? Is it free? If it's free, will it take an eternity to arrive? If I must pay for it, when can I expect my purchase to arrive? These are all things you as a consumer ought to know, and you can usually easily find the answers to these questions by find a "Shipping Policy" or perhaps "FAQ" page on the site. Previous, but certainly not least, you have to find out what forms of payment the web page accepts. This seems like it may be obvious, but I can't even count the times that I've found a wonderful quality merchandise on a site, only to find out that they don't accept some of the forms of payment I have available.