The LEGO Technic Airbus H175 Rescue Helicopter (42145) is an advanced 2,001-piece building set designed for children aged 11 and up. This highly detailed model replicates the iconic Airbus H175 helicopter used for rescue missions. 

 The set features realistic details such as rotating blades, retractable landing gear, and a functional winch for rescue operations. It also comes with a working cockpit and doors that open and close, offering a realistic building experience. Once completed, this set makes an impressive display piece for any LEGO Technic fan.