MECCANO, Super Construction 25-in-1 Motorized Building Set, STEAM Education Toy

My son never took to this great setI believe all the parts are there, but can’t guarantee it25 BUILDING MODELS: Let your child build 1 of 25 different construction vehicles (models can be built one at a time). Parts can be used to rebuild a helicopter, a buggy crane and much more or kids can mix match pieces for an original design.REAL WORKING VEHICLE: Build a motorized crane and bring it to life with the 6V electrical motor. Play with its rotary body and extendable hook!STEAM TOY: For over a hundred years, Erector has been promoting children's STEAM (Science, Technology, Engineering, Art and Math) learning as they build and playThe Meccano Super Construction Set is made for children ages 10+.Includes: 638 pieces, 6V electrical motor, 3 real tools, 1 instruction sheet (for 11 models) flawless for everyday use. supreme materials and excellent craftsmanship ensure long-lasting durability.