Slidemaster Anodized Aluminum Placard Holder for Trucks meet exacting standards for top quality construction. This anodized aluminum, as opposed to the non-anodized model 80SM, slide-in placard holder features Easy-Off Ramp, an innovative device that glides placards over the retaining clip, so they slide in or out without a hitch. Built with rugged riveted assembly, drain hole and stainless steel clip, Slide master holders accommodate metal placards and non-adhesive placards in polycoated tagboard and 20-mil rigid vinyl.