These plugged pipets can be incinerated or autoclaved for efficient disposal after use. Pipets feature negative graduations for overfill capacity. Reverse graduations are on all sizes except 1 ml size. Pipets and packaging are color coded. Individually wrapped pipets feature a unique thermoformed packaging which provides a guaranteed sterile barrier and the convenience of peel-apart or “pop through” options for easy opening without static cling. Certified non-pyrogenic.