Built it once after that it is of no use for me.
All parts are complete not a single part is missing. Box is also not there bcoz it was wet and full of fungus so I threw it.

description:
Our range of kid’s learning toy kits are loved by students and trusted by parents as they impart diverse learning though construction toys.This M’Tek mechanic set from the range of engineering model making kits is a great gift for 7 to 14 years old boys and girls. Kids will learn best by this practical science experiment kit as it provides a fun and playful launchpad for imparting mechanical skills.This is a STEM toy (Science, Technology, Engineering and Math) and learning skills are gained while constructing the models. It also serves as an Advanced Steam project kit for kids by encouraging the budding engineering talent in your kid to build, experiment, and even create & invent new models which encourage the development of STEAM skills as well.This Science experiment set provides instructions to make as many as 32 STEM toy models. There are more than 230 parts provided in this ultimate science kit. All the parts in this toy box are tested and certified as safe toys as per International toy standards. Our commitment with this Science toy - If there are any missing parts, just reach out to us on our customer number or e Mail to get immediate redressal.The durable metal components and real tools like Allen key in this making kit offer a genuine engineering experience. The detailed Instruction Book provided in the mechanic set with large pictures incorporates step by step images to make it easier for construction resulting in minimum adult intervention.