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Square heat shield tile made for use on the Buran shuttle 2.01 Space Orbiter as part of the reusable thermal protection system (TPS). The tile measures 6˝ x 6˝ x 2˝ and is made from lightweight quartz material with multiple layers of a proprietary heat-resistant composite coating, which allows it to handle temperatures up to 2700 degrees Fahrenheit during reentry. In fine condition.