Can be stacked when not in use to save space Graduated from 500 to 3500mL Wide mouth in two diameters for easy sample entry and pouring Containers made of durable LDPE with extra-strong seams that virtually eliminate leakage Amber tinted to inhibit ultraviolet degradation of the sample Inert to most aqueous- and alcohol-based solutions Screw-on cap, handle for convenient transporting, and a detachable identification tag Designed for, but not limited to, urine collection Do not use for solutions containing nitric acids.