Ok, I'm trying to establish some business rules of syntax for SEO friendly URLS. I'm doing this for an OpenCart online store which uses a SEO-url field to construct the "friendly URL's".  The good news of that is I have total control over the urls' the bad news is I had to do some tricky Excel work to populate them. That all said, I have a problem with items that have sizes. This is a crafts store so many of the items are differentiated by size. Examples: Sleigh Bells, come in 1/2", 3/4", 1", 1 1/2" etc. So far Ive tried to stay away from inch mark "  by spelling it out.  Right now its inch but could be in. The numbers, fractions, sizes etc. create some ghastly friendly URL's.  Is there any wisdom or syntax standards out there that would help me. I'm trying to avoid this: www.mysite.com//index.php?route=craft-accessories/bells/sleigh-bells/sleigh-bells-1-one-half-inch-with-loop I realize that the category (sleigh-bells) is repeated in the product name but there are several 1 1/2" items in the store. Any thoughts would be useful, even if it's links to good SEO sites that have mastered the myriad of issues with dimensions in the urls. thanks