Crystal clear, nonyellowing acrylic. 10 times more break-resistant than glass. Use for storm doors, shower doors, window panes, picture framing, shelving, table tops, and more. Easy-to- cut, saw, or drill. Complies with Federal CPSC safety standard for Architectural glazing 16 CFR 1201 Cat.II and ANSI Z97.1-1984. Thickness: Full .100 (1/10").