Accurate and Precise Using PIPETMAN DIAMOND Tips with your PIPETMAN ensures maximum accuracy and precision and delivers consistent results. The perfect air-tight seal prevents leaks. The tips are made of pure polypropylene to deliver the correct volume and ensure complete dispensing. Volume graduations make it easy to visually check the volume aspirated. Reliable Our tips are manufactured in a clean room environment ensuring they are free of detectable contaminants that can affect your results. From mold to bench, they are guaranteed, certified, and traceable to meet the most stringent demands in many applications. Economical Ordering in bulk and simply reloading the tips into empty racks saves you money.