... shrink wrapcertificate:EN71,ASTM. feature:1.wooden educational jigsaw puzzletrain children's flexibility and the co-ordination between eyes and hands.if ... figure,like fruit,plants,aninals and so on,3.improve children's patience and concentration when they play puzzle,and also ... meet difficult .sametime,buid a good self-confidence,4.give children a clear concept about unity and parts. Different with ...