B-Lok Divided Tray, Size B (Ritter) 13-3/8" x 9-5/8" x 7/8", Midnight Blue. The tray holds and organizes 12 instruments for procedures and sterilizations. The tray has wide edges and non-slip feet for stability. The tray features Gray Insti-Grip to hold instruments in place. The tray can be cleaned with surface cleaner or by washing, and is autoclavable up to 136C or 277F