elmer s 20 x 30 3 16 thick black foam board 10bx gray sheet 10 sheets model 91120 price per box color format quantity size type

unique boards that are black through the core complete projects faster and easier with perfect results every time cuts cleanly and easily and with a built in memory edges spring back to original thickness 20 x 30 x 3 16 thick black 10 box specifications color black grayformat sheetquantity 10 sheetssize 20 x 30 type foam board