Color-coded and reusable. With a large tip opening for faster delivery, but less accuracy. Graduations are 0.1mL. Top end has been tooled to accept cotton plugging on all sizes. The 1 and 2mL sizes have tip openings slightly smaller than the bore of the graduated portion, while the larger sizes have openings of approximately 3mm. For use with viscous liquids, slurries and suspensions. Designed from ASTM Specification E1044, Style III requirements.