Package:1PC Acrylic Sheet Backing Board with Grid Clay Pottery Craft Tool Material:acrylic Size:Approx 10cm X 19cm Color as the picture show and may slightly different from the picture due to computer piexl U shaped acrylic sheet board can well protective coverings on the surface,prevent scratch and dust. Made of premium material,durable and can be used for a long time.Four corners of the U shape board are specially polished, safe to use.Great for changing the shape of clay. An necessary moulding clay tools,acrylic sheet can be used for backing board or pressing clay into other shapes.Allowing you to enjoy the fun of DIY at home or school.