wishky stem toys for boys 10-12, young engineer-sets for boys 8-12| 4wd electric mechanical toy, stem projects for kids, gifts for boys, girls & teens aged 8 9 10 11 12 & up wishky toys <b>stem learning</b> - science, technology, engineering and, mathematics. stem aids children in honing their hands-on creative problem-solving skills, innovation, decision making, leadership, entrepreneurship, and more. <br> <br><b><b>learn how</b></b> to assemble a four-wheel-drive climbing vehicle step-by-step. <br>learn how electrical energy can be converted into mechanical energy. <br> <br><b>perfect gift for boys & girls</b>: our stem diy construction kit is the ideal gift for children, teenagers, and even adults, age 8+. <br> <br><b>wishky stem toys</b> inspire children to learn with fun. the educational 4wd climber model assembly kit helps kids develop fine motor skills, boost logical thinking, and learn how to be persistent and patient. <br> <br><b>safe 100% non-toxic materials</b> - this assembly kit is made from non-toxic abs plastic parts that have been tested and approved by a third-party astm (american society for testing and materials) laboratory. <br> <br><b>no special tools are needed</b> - the kit includes everything you need. <br> <br> some simple wiring is required to complete the assembly, and one (1) r6/aa/um3 battery is required. (kit does not include battery). <br> <br><b> kids can choose from 3 different chassis angle settings to alter climbing ability: changing the shaft's attachment position on the wheel alters climbing ability for flat surfaces, low obstacles, or higher obstacles. position 3 allows the model to climb obstacles up to 5cm (2”). <br> <br><b>we updated the assembly guide</b>. please read the instructions and work step-by-step to complete the project successfully. <br> <br> <b>improves social skills and teamwork</b> - awesome activity alone or together with parents, grandparents, or friends to build an array of eye-catching models.<br><br><b>encourage your kid's </b>constructive play! watch your young engineer or invite the whole family to <b>creative diy construction and spend quality time together! </b>