Thermowell® GOLD 384-well PCR microplates feature a rigid construction that is ideal for automation. Uniform wall thinness assures efficient heat transfer while minimizing well-to-well variability. Ultra-pure medical grade polypropylene is used in the finest quality molding process to ensure the highest quality microplates for PCR. 100% tested for well integrity and certified DNase- and RNase-free. Nonsterile, without lids.