The LEGO NINJAGO Kai's Mech Jet set (71707) is a retired plastic building toy designed for children aged 7 and above. With a focus on the popular NINJAGO theme and featuring the character Kai, this set includes a complete set for building a mech jet. Released in 2020, this LEGO set offers a fun and creative building experience for fans of ninjas and LEGO alike. The packaging comes in a box, and the set includes pieces to build Kai's Mech Jet, providing hours of imaginative play.