LEGO NexoKnights The Fortrex 70317 Build the vast rolling castle and defend the kingdom! As featured in Cartoon Network's LEGO NEXO KNIGHTS series Includes Clay Moorington, Aaron Fox, Axl & Ash Attacker minifigures, plus Chef clair & two Scurrier figures LEGO NEXO KNIGHTS building toys are compatible with all LEGO construction sets for creative building The Fortrex is over 9 high, 14 deep and 14 wide when unfolded 1140 pieces  For boys and girls between the ages of 9 and 14 years old