If you have multiple pages on your website covering similar products, there’s a strong possibility that you’re being inefficient in terms of search engine optimisation, and you could even be causing yourself problems. This is a particular problem with online stores, where you’ll quite likely have a separate page for every tiny variation in product. If that’s the case, I’d strongly recommend that you and your website designer read ECommerce SEO: Product Variations, Colors, and Sizes on the RKGblog. It’s quite technical, but it could make a big difference to your site’s performance in the search engines. There’s a video version of the article too.