KnuckleStrutz construction toys encourage building skills and expand the imagination397 Pieces8 in 1 ModelsIncludes 22 Gears & 10 TiresBuilds - Engine 29, Big Rig, Trekz 4x4, Fighter Jet, Street Racer, Hyper Bike, Lunar Lander, or Dune Racer
Knuckz Delux Set, our biggest standard building set yet, you can assemble the Engine 29 fire truck and the Big Rig semi truck! You can also build 6 other models! Use the 397 pieces (including 12 gears and 10 tires) to construct any model you can imagine!