These sterile, disposable, plastic loops and needles are designed for use in quantitative procedures such as sampling, urine counts and serial dilutions, as well as for bacterial inoculation. Because they are pre-sterilized and designed for single use, there is no risk of cross-contamination and no need for flaming. They are flexible enough for streaking, yet rigid enough for subsurface inoculation. The unique hexagonal shape of the shaft makes it easier to grip, position and guide through a smooth streaking process. The loop surfaces are extremely smooth, with no rough edges and no flashing or burrs on the loop head. This results in the elimination of cutting or gouging of the agar surface. Sterile, disposable and verifiably accurate, these loops provide an efficient, cost-effective and time saving alternative to traditional metallic loops.