The Basics Worbla’s Pearly Art (WPA) is similar to Worbla’s Black Art, but with the smoothest finish available in Worbla products, a white color to make marking designs easier, and a stronger adhesive to make joining pieces simpler.  The Benefits WPA is excellent for projects with minimal priming for a smooth finish, fine sculptural details, and frosted light effects. The Specs                • Small sheet 14.5" x 19.5"    • Medium sheet 19.5" x 29.5"   • Large sheet 29.5" x 39"  • Jumbo sheet 39" x 59" The Bottom Line Non-toxic and skin safe thermoplastic material with limitless possibilities that can be shaped and edited by hand without requiring special safety gear.