Block holds forty-eight 0.2ml tubes or six PCR strips of 8 tubes each for Benchmark Digital Dry Bath (BSH1001, BSH1002, BSH1004). Blocks are precision machined to match the conical shape of the tube size, providing unsurpassed temperature uniformity. Capacity: 48 tubes or 6 PCR strips with 8 tubes each. Tube size: 0.2ml tubes or 8 tubes per PCR strip. Material: high grade aluminum. Sold individually. Benchmark Scientific #: BSW02.