General description: Fits most popular 96-well PCR platesMinimized evaporation in PCR and storageAlpha numerics printed on each mat, for easy well identificationPierceable with syringeNot compatible with DMSO and other harsh solventsTabs for easy application/removal of matReusable for up to 5 timesWhen used with a screw- or clip-down thermal cycler lid, provides 100% sealingFully autoclavable, reversible