A difficult double sided puzzle with only 529 pieces. This fantastic puzzle wih have you hooked for hours as you try to figure out where each piece connects. Each side has exactly the same art work and it is impossible to tell which side is which. This will really have you scratching your head. Though it only has 529 pieces it will feel more like 4000. Each piece must be compared on both sides for size. Colour and fit. This puzzle is made from high quality card and comes presented in a rectangular box which has been shrink wrapped for further protection. Finished puzzle measures 384mm x 384mm. Contents: 529 piece puzzle. 1 or more players. For ages 12 years and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use.