Axygen® 0.5 mL polypropylene thin wall PCR tubes with flat caps are designed to fit standard 96 well blocks and are available in an assortment of colors. Ultra-thin and consistent wall thickness allows precise thermal transfer and even insertion cap ensures a tight fit to prevent evaporation.
(This is the suggested replacement for PCR-05-X) 

• RNase-/DNase-free

• Nonpyrogenic

• Nonsterile

• Manufactured with 99.9% pure virgin polypropylene