You need to find out rather or perhaps not the vendor has pictures available of the product they are simply selling. When you're shopping personally, you have the option to look at products close up, hold them in your hand, and study their texture. When you're shopping Cabezal Impresion HP Print Head for Epson HP933 HP932 6100/6600/6700/7110/7610/7510 3D Printer Accessories online, pictures are the closest thing to that particular there is. I would not advise buying from any on the net goods shop that doesn't exhibit pictures of the product. It is advisable to research the online goods shop's shipping policy. How much will certainly shipping be? Is it free? If it's free, will it have an eternity to arrive? If I must pay for it, when can I expect my purchase to arrive? These are all traits you as a consumer should know, and you can usually easily find the answers to these questions by simply find a "Shipping Policy" or "FAQ" page on the site. Previous, but certainly not least, you must find out what forms of payment the website accepts. This seems like it could be obvious, but I simply can't even count the times that I've found a wonderful quality product on a site, only to find out that they don't accept many of the forms of payment I have readily available.