High chimney wells help prevent cross contamination and are easy to seal with strip caps or mats. 24 wells in a 3 x 8 configuration. Polypropylene plates provide rapid, even heat transfer for reliable amplifications. Certified free of detectable RNase, DNase, DNA, and PCR inhibitors. Tested pyrogen free. Non-skirted. Box contains 20 sleeves of 2 plates each (40 total).