Microplates are manufactured from Clear Choice virgin polypropylene resin. Produced with uniform external dimensions and tolerances to meet ANSI recommendations for compatibility with equipment and robotics. Microplates are biologically inert, exhibit low binding characteristics, offer a high temperature tolerance, and are resistant to many standard laboratory chemicals. These properties provide optimal conditions for laboratory specimen and compound storage. Microplates feature a square-round top well geometry to minimize wicking and air bubble formation. Flat or conical bottoms enable complete sample recovery and raised well rims facilitate thermal, adhesive, or cap mat sealing. Stackable and autoclavable. Microplates are free of detectable RNase, DNase, human DNA, and pyrogens.