gili stem building toy for boys 8-12 - dump truck or airplane 2 in 1 construction engineering kit (361pcs) best gift for kids age 6 7 8 9 10 11 12+ years old gili learning stem through play- wonderful toys for kids who love building this construction set with great functionality and lots of playability. it will keep kids occupied and spend quality time with family and friends. this stem building kit is an ideal gift for boys and girls who want to be an engineer. follow the step-by-step manual, kids can build a dump truck then take it apart and rebuild a propeller plane. the dump truck features two working mechanics, a knob to turn the wheels and another to move the tipping cargo bed up and down. the propeller plane features a knob to rotate propeller. kids can watch how gears work when they play this set. diy is always a great thing for kids, they will get much happier when finished making an awesome item by themselves. <br><b>why choose gili stem toys</b><br> a customer: i bought this stem toys for 6 year olds. this toy allows kids to know about step by step building and mechanical engineering.<br> b customer: this is a great stem toys for 7 year olds. it is a great gift for 7 year old boy who likes building. these pieces can be built 2 awesome models. <br> c customer: purchased this for my grandsons, they have spent hours building and re-building. truly a great toy for them ages 8, 9 and 10. <br> d customer: i bought this stem toys for 8 year olds. then my 5 year old like it too. my 5 year old prefer the dump truck model and my 8 year old prefer plane model so i must order one more now.<br> what will you get 361 x building blocks and gears 1 x easy-to-follow manual 4 x tires and a smiling face from your kid what can we do for you we offer you a 6 months 100% money back guarantee money back guarantee if you are not happy with your purchase. you can contact us from your order details page if you encounter any problem (like missing parts), we are ready to help you.