Sterile. For color-coding and plate identification, link below to SealPlate ColorTab films. SealPlate minimizes evaporation, prevents well-to-well contamination and spillage. Eliminates the “edge effect” which can occur with plate lids (e.g. greater evaporation in the outside plate wells). Provides a secure seal and is easy to remove. Rigid polyester film features good clarity and easy handling. Can be used as a temporary economical seal while awaiting further processing. Features two end-tabs with perforations.