Obscure Glass Tables & Accessories feature tempered, obscure glass. Obscure glass remains a very popular choice among consumers because of its value and ease of maintenance. Obscure glass is good at hiding dirt and scratches from normal exposure to the outdoor elements and from general use. The “tempered” advantage of the glass is a result of a special heat finishing process for added safety. If accidentally broken, the glass will shatter into pea size pieces as opposed to breaking into large shards of glass which could cause injury.