Mouth Pipet Pieces - Assorted Colors OnlyDisposable Plastic Pipet Mouth Pieces Mouth pieces are small plastic adaptors used for manipulation of specimens with a hose and a pipette for a precise control of media and specimens when manipulating them under microscope view. Available on boxes of 100 units, not sterilized. MouthPieces are now made with recycled unused Cryolock materials. These Assorted Color Mouth Pieces are the exact same size and shape of the original Yellow Mouth Pieces. Box