Styrofoam Balls with Header Card are suit for craft hobby size: from 10mm to 800mm Styrofoam Ball with Header Card1.All kinds of ball2.Material:Eps( Expandable polystrene)3.It is made for School education,decoration, DIY products and cradt hobby.4.Available Sizes: 10mm,12mm,13mm,15mm,18mm,20mm,23mm,25mm,30mm,40mm,50mm60mm,70mm,75mm,80mm,90mm,100mm,120mm,150mm,200mm,250mm,300mm,400mm.5.The detail ...