WOODEN PUZZLE is easy to assemble as its accompanied by color step-by-step instructions; suitable for children of 14 and above GREAT GIFT for Christmas gift for Thanksgiving Day gift for boys gift for girls wooden toy DIY model gift for New Year gift for Independence Day wooden puzzle mechanical brain-teaser. Manufacturered by UGEARS. MECHANICAL TREASURE BOX for jewellery and notes is a true jewel of Ugears new collection of wooden models for.