The product is a 20cm MPES pipette with a 30K volume range, having a 0.5mm inner diameter and made with a multi-layer PTFE liner. It is sterile and brand new, manufactured by Repligen in the United States. This pipette is designed for medical laboratory use and is intended for precise and accurate measurements in a healthcare or research setting. The product comes in a pack of 1 and does not have any California Prop 65 Warning associated with it.