Quote Originally Posted by kobra View Post
You need to design a structure for your products so you can keep this straight

Then use "linking" for the other categories you create which is what the site you referenced is doing
Check "Black Eyeglasses Frames" and you will see that these are the same for blue etc and have colors other than black

https://www.zen-cart.com/content.php...linked-product
dear, would you mind teaching me the details?

tks