This 7-PCS Tangram Puzzle is made of wood， no bad smell， good paint， bright color， no harm to baby. With this， you can develop & promotion kids creative， patience and ability of practise while playing.Material: wood; Size: 15x15x1.4CM(including the outer frame)7 pieces tangram puzzle is the world's oldest and most well known silhouette puzzle，fun for all ages.Different colors in each block. Can atract kids' attention.Develop & promotion kids creative，patience and ability of practise!