Grimm's 23pc Four Elements Building SetAward Winning FOUR ELEMENTS BUILDING SET includes 23 building blocks in wooden frame. Made with European sourced FSC certified lime wood, non toxic water based colour stain and non toxic plant based oil finish. Size: frame length 44,5cm and single blocks are a 4cm thickness. With this exceptional shapes of building blocks the children can create caves, mountains and landscapes or decorate castles and palaces. While bulding the children train the fine