Children of the World Puzzle Gross Weight: 300 gr Sri Toy’s products are made from hand crafted rubber wood. Rubber wood is especially suitable for high quality toys as it does not splinter. The tree sources which we use are those which are grown to be tapped for latex. After completing its life cycle, the wood is used to create our beautiful toys. We maintain an environmental friendly tree plantation which ensures new trees being planted to replace those which are cut down. Some designs need extra wide timber and there is a limit to the width which can be taken from a rubber tree. Thus formaldehyde-free MDF material is used for such designs. Sri Toys is committed to using plants which comply with all world standards for safe lead levels, including the EN 71 (72 and 73) ISO 8124 and ASTM standards. Paint test reports are available for verification, upon request. All products are designed tacking the safety and the well being of the children into consideration .All designs are simple in construction .No metal parts are used. The individual pieces are too bog to be swallowed by children .And all edges are carefully sanded by hand. The quality of each product is thoroughly controlled and reviewed at each stage of the production line.