Bulk Packed Tips manufactured by VIOX Scientific are made of high-quality biological polypropylene under ultra-clean production environment. The tips feature high-precision mold manufacturing and precision injection molding technologies to ensure the qualities of the products and the uniformity and stabilities of products of different lots. The length of the tips are extended by 2/3 to reduce the risk of pollution. The external surface of the tips are engraved with range and calibration tails to facilitate reading of liquid amount.