jigsaw paper puzzle 1.non-toxic and safe 2.various design and colors 3.good for children's intelligence Material Paper card,cardboard paper Thickness 1mm-2mmPacking 1 set each opp bag,then into one packing box,as customer's requirementUsage Developing childrens' thinking skills,funnyInstructionfor Use Peel off backing of sticker sheet to use sticker for mathing referenceSimply join the ...