Use these deep well microplates for storing samples or high throughput applications. The microplates are compatible with many microplate centrifuge rotors, microplate processing equipment, and sample processing workstations. The plates each have 96 round wells in an 8 x 12 format. The microplates are RNase/DNase free, with sterile and non-sterile packaging. Bar coding is available upon request, and steel freezer storage racks are also available. The 0.5 ml microplates are made of polypropylene to be chemically-resistant and temperature-resistant. You can freeze or autoclave them and are great for storing samples in the freezer if you use the strip caps available separately. They have conically-shaped well bottoms. The 1.0 ml plates are available in either polystyrene or polypropylene, with round well bottoms, and they meet SBS standards. They are also RNase/DNase Free.