But you can let us know if you need to hurry. We have a responsible team with perfect after-service. We are always here to help you and we will always solve your problem until you are satisfied. We have detailed instructions and assembly videos on our product page. But you can also ask us if you have any problems. There are many accessories and bolts, if these is any damaged or missing when delivered, pls let us know, we will resend them for you.