It are designed to streamline pipetting procedures by providing a sterile and reliable solution for reagent handling. Made from high-quality polystyrene (PS), these reservoirs feature a "V" shaped bottom to ensure that all the reagent is accessible and can be easily aspirated. The thick wall construction and wide base add stability and durability, making the reservoir easy to handle without product deformation. Graduation markings allow for measurement of the liquid, and pour-off spouts on all corners enable spill-free pouring. These reservoirs are stackable with a nesting system for easy separation and are sealed in bags, electron beam sterilized, and DNase, RNase, and pyrogen-free.