Office Products" /> Standard numbering; Round holes with tight tolerances hold 13mm tubes firmly for accurate processing reducing lost samples and potential damage to instruments Increased efficiency is achieved by using the numbered locations for programming, resulting in higher throughput Designed for automated liquid handling systems, they are ideal when cell identification/location is critical Excellent tool for clinical laboratories in identifying test tube locations for multiple samples 6 rows of 15 places (90 place) and made of autoclavable white polypropylene