wood trick oil derrick rig toy - oil pump jack mechanical model to build - 3d wooden puzzle, assembly toys - stem toys for boys and girls wood trick <p>educate your child on one of the most important structures in the modern day. engineers are paid millions of dollars to design and construct oil derricks to pump valuable oil from the ground. teach your child about this important piece of engineering, and maybe he or she will be building these valuable structures in the future! make your friends jealous that you or your child built this aesthetically beautiful piece! <br> this <b>wooden oil derrick set</b> includes 120 pieces, but building is accessible for adults and children! the set comes packaged with clear, simple and very detailed instruction as well as illustrations. follow these instructions to build the <b>wooden drilling oil rig</b> quickly and correctly!</p> <p>building these sets will draw out and propel your child’s ability to plan and build their own structure or vehicle like a true architect or engineer. <br> utilizing safe and environmentally friendly wood from all-natural trees without any added toxins or glues, you can build the <b>oil derrick</b> and drill for oil in your back yard or your friend’s home! even small children can safely play with <b>woodtrick</b> sets without fear of exposure to harmful chemicals or dyes, although we recommend parental supervision when small children build and play. </p> <p><b>characteristics</b>: <br> country - ukraine<br> brand - wood trick<br> material - eco friendly plywood<br> movement - mechanical<br> assembly - without glue<br> assembly - self<br> quantity of parts - 120<br> model size, l*w*h* - 10.2*4.3*9.0 in (260*110*230 mm)<br> packing size, l*w*h* - 14.5*7.2*1.3 in (370*185*35 mm)<br> complexity of assembly - medium<br> assembly time – 4-5 hours<br> weight of the model in package – 0.96 lb (0,436 kg)</p>