Set-up Tray Flat Size B (Ritter) - Green, Plastic 13-3/8" x 9-5/8" x 7/8". Self-lubricating, high-gloss surface prevents stains. With wide, easy-grip edges and non-slip feet for enhanced stability. B-Lok Flat Trays come with wide, easy-grip edges and non-slip feet for enhanced stability to hold instruments and other items for dental procedures. The self-lubricating, high-gloss surface feature prevents stains and discolorations. Each tray measures 13 1/2" x 9 5/8" x 7/8".Tray covers are sold separately.