The LEGO Super Hero Girls DC Batgirl Secret Bunker 41237 is a pre-owned set featuring 351 pieces for children ages 6 and up. This set, released in 2017, allows kids to build the Batgirl Secret Bunker from the DC Super Hero Girls theme. With the iconic character of Hero and the Super Heroes subtheme, this LEGO set provides hours of imaginative play and creative building opportunities. The set includes items such as the Batgirl figure, secret bunker, and various accessories to bring the superhero world to life for young fans.