Cast Acrylic 
3/8" thickness
~12" x 19" dimensions
Perfect for use in a laser
3/8" starter cut settings
90W laser: 5(S)/75(P)
150W laser: 5(S)/55(P)
45W laser (my Glowforge): ​​​​​​120(S)/90(P)/3 passes **note: my Glowforge did not produce "glass-like" edges on this thickness as it is rated for up to 1/4" thickness. Use at your own experimental risk.